Pre-RNA editing takes place in the cytoplasm it makes use of a complex comprising active enzymes known as the spliceosome.
Where can a spliceosome bind to a pre-mRNA transcript?The spliceosome is constructed in stages. The 5' splicing site is first bound by the U1 snRNP, followed by the branch site by the U2 snRNP. The pre-mRNA transcript is bound by many additional snRNPs (U4, U6, and U5) to create the finished spliceosome complex.
What portion of the mRNA does the spliceosome splice out of the mRNA?A protein-and-RNA complex known as the spliceosome recognizes and excises particular pre-mRNA introns during RNA splicing. Introns can be thought of as "junk" sections that need to be removed in order to create the "great parts version" of a RNA molecule.
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describe the behavior of frog heart. do you observe any delay between atrial and ventricular contractions? if it is not obvious, what could you do?
No, there is no delay between atrial and ventricular contractions
Words to be filled in upper boxes: (left to right)
1. Parasympathetic postganglionic
2. Parasympathetic preganglionic
3. Post ganglionic
Words to be filled in lower boxes: (from left to right)
1- Sympathetic preganglionic fibre.
2- sympathetic post ganglionic fibres.
3- sympathetic preganglionic fibres.
What is atrial and ventricular contractions?Extra heartbeats known as premature atrial contractions (PACs) start in one of your heart's two upper chambers (atria). Your heart's natural rhythm is disturbed by these additional beats. They are a particular kind of cardiac arrhythmia. Extra heartbeats known as premature ventricular contractions (PVCs) start in one of the heart's two bottom pumping chambers (ventricles). The usual heart rhythm is disrupted by these additional beats, which can occasionally make the chest seem as though it is fluttering or skipping beats.
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The complete question is as follows:
describe the behavior of frog heart. do you observe any delay between atrial and ventricular contractions? if it is not obvious, what could you do?
Explain how temperature and the amount of precipitation can affect the type of plants and animals found in the coniferous biome.
Answer:The coniferous biome, also known as the boreal forest or taiga, typically experiences long, cold winters and short, mild summers. The amount of precipitation in this biome varies, but it is usually in the form of snow.
Explanation:A low temperature can limit the types of plants that can survive in the coniferous biome. Only plants that are adapted to cold and drought stress, such as conifers, can thrive in this environment. Conifers have needle-like leaves that conserve water and reduce heat loss, allowing them to survive in cold and dry conditions.
A high amount of precipitation can also affect the type of plants and animals found in the coniferous biome. Areas with higher rainfall support a greater diversity of plant and animal life, including deciduous trees, shrubs, and mosses. Animals such as moose, caribou, and beavers also thrive in these environments, as they have access to abundant food sources and shelter.
In contrast, areas with lower precipitation may have fewer plant and animal species. These areas may support only stunted or patchy forests of conifers, with limited undergrowth and little animal life.
I really need help in biology. Please help. It’s enzymes.
The way that the enzyme acts is shown in the image attached.
How does enzyme break down hydrogen peroxide?We know that the way that the enzyme works is that the enzyme acts in a lock and key model. We have to note that the enzymes are know to be specific in the way that they carry out there action meaning that one enzyme can only catalyze on reaction.
We are talking about the break down of hydrogen peroxide by an enzyme in the question and the image that have been attached shows the mode of action of the enzyme.
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what is the molecular basis for the observation that the overall charge on a protein becomes increasingly positive as
Protein molecules in aqueous solution become increasingly protonated as the pH decreases
The hydrogen ion concentration in an aqueous solution is measured by pH. The aquatic biota may be negatively impacted by the acidic circumstances that result from pH decreasing as hydrogen ion concentration rises.
What does a drop in pH indicate?Stronger bases are indicated by higher pH values, whereas stronger acids are indicated by lower pH values (alkalinity). Anything below 7 is basic, whereas anything above 7 is considered acidic. The acid is stronger the lower the number.
Human blood pH may decrease by 0.1 units, which can have fairly serious health effects such causing seizures, cardiac arrhythmia, or even coma (a process called acidosis).
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Full Question :What is the molecular basis for the observation that the overall charge on a protein becomes increasingly positive as pH drops and more negative as pH increases?
Drag from 4 terms: negatively, decreases, increases, positively
1. Protein molecules in aqueous solution become increasingly protonated as the pH ______.
why do you think a skeletal muscle fiber (cell) can have thousands of mitochondria, while a red blood cell has no mitochondria?
Muscle cells have more mitochondria because they need to swiftly release significant amounts of energy to move. Long, thin cells that are stuffed with highly ordered proteins and organelles make up skeletal muscles.
The rate of energy consumption in skeletal muscles can increase by more than 100-fold virtually immediately during intense activity. Muscle cells have mitochondria to accommodate this energy demand. Muscle cells require a disproportionately high amount of mitochondria compared to other cell types because of their comparatively high energy requirements. Due to their high energy needs, skeletal muscle cells have numerous mitochondria that enable them to produce enough ATP.
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sketch a diploid cell with two chromosomes in prophase 1
The prophase I stage of the meiosis is basically the step in which the crossing over takes place.
Meiosis is basically a reductional cell division which plays a very crucial role in enabling the equal division of the DNA material amongst the daughter cells, especially the germ cells during sexual reproduction. Meiosis has a number of different stages which are, prophase, metaphase, anaphase as well as the telophase.
DNA replication takes place before the beginning of the meiosis I of cell cycle. During prophase I of meiosis, the homologous chromosomes pair up to form synapses and these paired chromosomes are known as bivalents. The crossing over takes place during the prophase I and basically involves the exchange of genetic material which takes place between the homologous chromosomes and is important as it allows variation in organisms.
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Now go to the Cerebral Cortex dropdown menu, then go down to Occipital Lobe.
According to the text shown, the occipital lobe sends its conclusions to
A.the medulla and cerebellum
B.optic chiasm
C.the parietal and temporal lobes
D.the frontal lobe
E.the thalamus and cerebellum
The occipital lobe sends its conclusions to: the thalamus and cerebellum. Option E is the correct answer.
What is occipital lobe?
This refer to the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The primary visual cortex is Brodmann area 17, commonly called V1 (visual one).
The Occipital Lobe the smallest and rear-most of the lobes, is the visual processing hub of your brain. This area processes visual signals and works cooperatively with many other brain areas. It plays a very important role in language and reading, storing memories, recognizing familiar places and faces, etc.
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which of the following is not a macromolecule?group of answer choices waterproteins nucleic acids carbohydrates
Water is not a macromolecule.
A protein or nucleic acid is an example of a macromolecule, which is a very large molecule that plays a vital role in biophysical processes. It is made up of thousands of atoms that are bound together by covalent forces.
Numerous macromolecules can be broken down into their component monomers and reassembled into polymers. Biopolymers, which include nucleic acids, proteins, and carbohydrates, as well as big molecules that are not polymeric, such as lipids, nanogels, and macrocycles, are the most prevalent types of macromolecules found in biochemistry. Synthetic fibers as well as experimental materials such as carbon nanotubes.
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what is the sequence of these genes on chromosome iii? view available hint(s)for part b what is the sequence of these genes on chromosome iii? pink--dichaete--ebony (dichaete in the middle) dichaete--ebony--pink (ebony in the middle) dichaete--pink--ebony (pink in the middle)
Correct sequence of genes on chromosome is a)pink--dichaete--ebony (dichaete in the middle).So, correct option is a.
The genes and chromosomes will generally do a comparably significant job of holding information but the differentiation between the gene and chromosome can be laid out. The chromosome contains different genes and these genes are answerable for holding the information which is utilized for building explicit proteins. The proteins are the main class of parts or materials inside the body.
The proteins are not simply fabricating the impedes for the connective tissues, muscles, skin in addition to different designs. They are additionally expected to make the mixtures.The compounds are confounded proteins that control or manage and finish the substance interaction as well as reactions inside the body. The body makes countless various synthetic compounds. The protein blend will in general be compelled by the genes which are contained in chromosomes. The chromosomes fundamentally comprise of DNA and protein.
Hence, correct option is a.
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(Complete question) is:
what is the sequence of these genes on chromosome iii? a)pink--dichaete--ebony (dichaete in the middle) b)dichaete--ebony--pink (ebony in the middle) c)dichaete--pink--ebony (pink in the middle)d)all of these
what enzyme does a gamete producing cell unclude that cpompensates for replication associated shortnening
Telomerase enzyme is a gamete producing cell include that compensates for replication associated shortening.
Telomerase is the enzyme in charge of guanine-rich repeating sequences being added in order to maintain the length of telomeres. In gametes, stem cells, and tumor cells, telomerase activity is present. Senescence occurs roughly 50–70 cell divisions after senescence, and the potential for proliferation in human somatic cells is severely constrained. On the other hand, the potential for reproduction is generally infinite in tumour cells. The essential function of the mechanism for maintaining telomere length with the participation of telomerase in this process is still not well understood. Without a doubt, DNA polymerase is unable to fully replicate DNA at the very ends of chromosomes; as a result, about 50 nucleotides are lost throughout each cell cycle, leading to a steady shortening of the telomere length. Senescence, the crisis that follows, and cell death are all brought on by critically short telomeres. The machinery for maintaining telomere length is however triggered in tumour cells. Along with catalytic telomere elongation, independent telomerase actions may also be important for controlling the cell cycle. Limiting the capacity for tumour cell replication will be made possible by inhibiting telomerase's catalytic activity and, as a result, ceasing telomere length maintenance. On the other hand, telomerase activation and telomere elongation can be employed to reverse degenerative alterations by causing the development of a momentarily active enzyme by its intracellular activation or as a result of stimulating the production of telomerase components.
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which of the following is true about systems? a. a natural system can reach its ecological tipping point if it gets caught in a negative feedback loop. b. positive feedbacks work to maintain stability in systems.
Both statements are partially true, but they reflect different aspects of feedback loops in systems.
A. A natural system can reach its ecological tipping point if it gets caught in a negative feedback loop.
This statement is true. In a negative feedback loop, a change in one direction triggers a response that counteracts the initial change and works to restore the system to its original state. However, if the negative feedback loop becomes too strong, it can push the system past a critical point or "tipping point," causing a sudden and drastic shift in the system's behavior.
B. Positive feedbacks work to maintain stability in systems.
This statement is false. Positive feedback loops, unlike negative feedback loops, work to amplify changes in a system, rather than counteract them. Positive feedbacks can cause rapid acceleration of a process and can push a system past a tipping point, leading to instability rather than stability.
In summary, negative feedback loops work to maintain stability in systems by countering changes and restoring the system to its original state, while positive feedback loops can cause instability by amplifying changes and pushing the system past a critical point.
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In the systemic capillaries in muscle tissue, hemoglobin releases virtually all the oxygen it is carrying and becomes completely desaturated.
a. True
b. False
In the systemic capillaries in muscle tissue, hemoglobin releases virtually all the oxygen it is carrying and becomes completely desaturated True
The answer is a. True.
In the systemic capillaries in muscle tissue, hemoglobin releases virtually all the oxygen it is carrying and becomes completely desaturated. This process is essential for the delivery of oxygen to the cells of the muscle tissue, where it is used in cellular respiration.
As blood flows through the systemic capillaries in muscle tissue, the partial pressure of oxygen in the capillaries is higher than in the surrounding tissue. This causes the hemoglobin in the red blood cells to release its oxygen, which diffuses into the tissue. The now oxygen-depleted hemoglobin becomes completely desaturated, meaning it has given up all of its oxygen and has no more to release.
This process continues as blood continues to flow through the capillaries, supplying the cells of the muscle tissue with the oxygen they need for cellular respiration and removing waste products such as carbon dioxide.
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the calvin cycle requires all of the following except? oxygen. water carbon dioxide. NADPH
According to the given information The Calvin cycle requires all of the oxygen.
Where does Calvin cycle occur?The Calvin cycle is present in all photosynthetic humans as well as several photosynthetic bacteria. In plants, the stroma is the fluid-filled region of a chloroplast that is not shielded by the thylakoids, where these activities take place. RuBP is a simple five-carbon molecule that gets its carbon from the surrounding environment through the Calvin cycle.
What phase is the Calvin cycle?The Calvin cycle contains three stages. The enzyme RuBisCO adds carbon dioxide to an organic molecule in stage 1 of the procedure. At step two, the biological molecule gets smaller. At stage 3, the RuBP initiating molecule is replenished, allowing the cycle to continue.
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you have a total of 8.0 x 109 bacterial cells that you harvested by centrifuging a culture. what volume should you resuspend them to with culture medium if you want a cell density of 2.0 x 107 cell/ml?
Resuspend the [tex]8.0 * 10^9[/tex] bacterial cells to a final volume of 40.0 ml of culture medium to achieve a cell density of [tex]2.0 * 10^7[/tex] cell/ml.
The desired cell density is [tex]2.0 * 10^7[/tex] cell/ml, and you have a total of[tex]8.0 * 10^9[/tex]bacterial cells. So, to determine the volume to which you should resuspend the cells, you can use the following calculation:
Volume = Total number of cells / Desired cell density
Volume =[tex]8.0 * 10^9 cells / 2.0 * 10^7[/tex] cells/ml
Volume = 40.0 ml
Therefore, you should resuspend the 8.0 x 109 bacterial cells to a final volume of 40.0 ml of culture medium to achieve a cell density of [tex]2.0 *10^7[/tex] cell/ml.
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a former protein-coding gene that no longer performs any useful function will accumulate how many mutations relative to a gene that encodes a protein that is functionally important?
Answer: More mutations
Explanation:
Protein-coding genes are responsible for encoding proteins that are essential for various biological processes within an organism. Mutations, or changes in the genetic sequence of these genes, can result in altered proteins that may lead to functional changes or impairments.
In some cases, a protein-coding gene may undergo mutations that render it non-functional, meaning it no longer plays a role in the biological processes of an organism. When this happens, the gene may continue to accumulate mutations without any selective pressure to maintain its function.
Therefore, a former protein-coding gene that is no longer functional may accumulate more mutations than a gene that encodes a protein that is functionally important.
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What are land plants called?
Land plants are called Embrophytes. Plants are classified into two groups on the basis of vascular tissue.
Land plants, or embryophytes, are grouped by the presence or nonappearance of vascular tissue and how they recreate (regardless of seeds).
Non-vascular plants, or bryophytes, showed up from the get-go in plant advancement and recreate without seeds; they incorporate greeneries, liverworts, and hornworts.Vascular plants are partitioned into two classes: seedless plants, which presumably advanced first (counting lycophytes and pterophytes), and seed plants.Seed-delivering plants incorporate gymnosperms, which produce "exposed" seeds, and angiosperms, which recreate by blossoming.The green growth, known as the charophytes, and land plants are gathered into a subphylum called the Streptophytina and are, subsequently, called Streptophytes. Land plants, which are called embryophytes, are arranged into two significant gatherings as indicated by the nonappearance or presence of vascular tissue. Plants that need vascular tissue, which is framed of particular cells for the vehicle of water and supplements, are alluded to as non-vascular plants or bryophytes. Non-vascular embryophytes presumably showed up right off the bat in land plant advancement and are seedless. These plants incorporate liverworts, greeneries, and hornworts.
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Why is modern species extinction often linked to livestock production (meat consumption)?
O fences and containment borders needed for livestock production
vaccinations and antibiotic usage in livestock production
The consumption of corn by livestock
Demand for water consumption in livestock
All of these causes lead to the extinction of some species as a result of livestock production and meat consumption.
Species extinction is frequently linked to livestock production owing to a variety of variables.
For starters, animal production fences and confinement boundaries can contribute to habitat fragmentation.
Second, vaccines and antibiotic use in cattle production might have unforeseen environmental implications, leading to the extinction of some species.
Third, cattle intake of corn has grown in recent years, resulting in increased soil erosion and a loss in species variety.
Finally, the increased demand for water by cattle has reduced the amount of water accessible to other species, resulting in their decline.
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Which of these determines whether a fertilized egg develops into a toad, a snake, or a lizard?Athe sex of the eggB.the age of the eggСthe size of the eggDthe genes of the ogg
Option d) The genes of the ogg determines whether a fertilized egg develops into a toad, a snake, or a lizard.
The act of creating a new cell from an egg by a single sperm slowly penetrating its layers is known as fertilisation ("zygote"). It normally takes up to 24 hours for this to happen in the fallopian tubes. An egg can only be fertilised for a brief period of time.
The fertilised egg spends around 3 to 4 days in the fallopian tube. Yet after fertilisation, it begins rapidly dividing into many cells within 24 hours. It continues to divide as it slowly passes through the fallopian tube and enters the uterus. Its next job is to attach to the lining of uterus.
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Full Question: Which of these determines whether a fertilized egg develops into a toad, a snake, or a lizard?
A the sex of the egg
B. the age of the egg
С the size of the egg
D the genes of the ogg
A man is better than a woman in 450 words essay writing
Goodday mr.chairman panels of judges accurate time keeper and my fellow listeners.
my name is kuku Zainab am here to oppose the motion which says a man is better than a woman.
A woman is an adult of female,a woman is the one that take care of a family. a woman is a person that did house chores these are washing the dishes, washing the cloth, mopping, washing the toilet, cooking and sweeping the floor which are not easy to do those House work.why A man is the one that provides for the family , only they no to do is to be pressing phone when woman are doing there house chores.
some jellyfish have skeletons that are formed by fluid-filled compartments. This fluid resists compression and thus supports the body structure from deforming.
Yes, some jellyfish have skeletons that are formed by fluid-filled compartments which supports the body.
The umbrella-shaped bell is a real jellyfish's distinguishing characteristic. The mesoglea, a hollow structure made up of a mass of translucent jelly-like material, serves as the animal's hydrostatic skeleton. Water makes up at least 95% of the mesogloea, but it also has other fibrous proteins like collagen and roving amoebocytes that can ingest detritus and germs. On the exterior and inside, respectively, the gastrodermis and epidermis surround the mesogloea. The bell can bend because the edge of the bell is frequently divided into rounded lobes called lappets. Rhopalia, which are simple sensory organs, hang from the spaces or recesses between the lappets, and the bell's perimeter frequently has tentacles. this information is accurate. The soft, gelatinous bodies of jellyfish, which are primarily composed of water, are well recognised. The mesoglea, a thick layer of jelly-like substance that offers structural support and resistance to compression, is a form of skeleton seen in some jellyfish species. The jellyfish's interior organs are shielded by and kept in form by this fluid-filled mesoglea. As the jellyfish contracts its mesoglea to move through the water, it also plays a role in propulsion. Overall, the mesoglea is essential to the existence and operation of jellyfish.
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a total of 75 colonies were counted on the plate that received 1 ml of a diluted specimen. after calculating, it is determined that the total bacterial count in the original specimen was 75,000,000 colony forming units (cfus) per ml. what was the dilution factor for the plated sample?
The dilution factor for the plated sample is 1,000,000.
The dilution factor is a measure of the change in concentration of a solution as a result of dilution. Dilution refers to the process of adding a solvent (such as water) to a solution in order to reduce its concentration. The dilution factor is the ratio of the initial concentration of the solution to the final concentration after dilution.
Dilution factor = (original concentration) / (concentration after dilution)
Given that the original concentration was 75,000,000 colony forming units (CFUs) per mL, and the concentration after dilution was 75 CFUs per mL, the dilution factor can be calculated as follows:
Dilution factor = 75,000,000 CFUs / 75 CFUs = 1,000,000
Therefore, the dilution factor for the plated sample was 1,000,000 which means that the original sample was diluted 1,000,000-fold before being plated.
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1. Which statement presents an advantage of using electronic ballots?
a. Results can be quickly and accurately counted and shared.
b. Voters can quickly and accurately learn to use the system.
c. Hackers cannot access the system to change the results.
d. Ballots are immune to electronic bugs and errors.
2. Which of these describes digital transmissions and not analog transmissions?
a. continuous
b. 1s and 0s
c. smooth
d. sine waves
Voters can quickly and accurately learn to use the system. The one that describes digital transmissions and not analog transmissions is 1s and 0s. The correct options are b and b respectively.
What is data transmission?The movement of data from one digital device to another is known as data transmission. Through point-to-point data streams or channels, this transmission is carried out.
Signals containing information often come in the form of analogue and digital signals.
The primary distinction between the two signals is that analogue signals have continuously varying electrical signals, but digital signals do not.
Because digital transmission signals in bits, a digital signal transmits data in binary form.
These signals can be broken down into harmonic sine waves, sometimes known as sine waves. Like an analogue signal, every digital signal contains amplitude, frequency, and phase.
Thus, the correct options are b and b respectively.
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capillary bulk flow is so efficient that less than 1% of the water filtered into the tissues at the start of a capillary bed is reabsorbed at the end of the capillary bed. true or fasle?
a student analyzing cells microscopically in the lab makes note of the connexons between neighboring cells. the cells are most likely from which organ?
Answer:
Heart
Explanation:
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The observation of connexons between neighboring cells suggests that the cells being examined likely come from an organ that requires close coordination and communication between its constituent cells, such as the heart, brain, or liver.
Cells in the human body are connected to one another through a complex network of proteins and structures that allow for communication and coordination. One such structure is the connexon, which is a complex of proteins that forms channels between neighboring cells, allowing for the passage of small molecules and ions.
Based on the observation of connexons between neighboring cells, it is likely that the cells being examined come from an organ that requires close coordination and communication between its constituent cells. One such organ is the heart, which is composed of highly specialized muscle cells called cardiomyocytes that are tightly interconnected through gap junctions, which are formed by connexons.
Gap junctions allow for the coordinated contraction of the heart muscle, which is critical for its function as a pump that circulates blood throughout the body. Other organs that may also show the presence of connexons between neighboring cells include the brain, which relies on tight communication between neurons, and the liver, which is responsible for metabolizing and detoxifying compounds in the body.
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which two organs were described in lecture as the primary sites for gluconeogenesis during fasting (days, not hours, since last meal)
Two organs which were described in lecture as the primary sites for gluconeogenesis during fasting is liver and cortex of kidney.
Gluconeogenesis happens after something like 8 hours of fasting, when liver glycogen stores begin to exhaust and an elective wellspring of glucose is required. It happens fundamentally in the liver and less significantly in the cortex of the kidney
Gluconeogenesis is a metabolic pathway that outcomes in the age of glucose from certain non-carb carbon substrates. It is a pervasive cycle, present in plants, creatures, parasites, microbes, and other microorganisms.[1] In vertebrates, gluconeogenesis happens mostly in the liver and, less significantly, in the cortex of the kidneys. It is one of two essential components - the other being debasement of glycogen (glycogenolysis) - utilized by people and numerous different creatures to keep up with glucose levels, staying away from low levels (hypoglycemia).
In ruminants, since dietary carbs will generally be used by rumen life forms, gluconeogenesis happens paying little heed to fasting, low-starch eats less carbs, work out, etc.[3] In numerous different creatures, the cycle happens during times of fasting, starvation, low-carb slims down, or extraordinary activity.
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witch two codons represent the amino acid threonine.
UGG only
ACA and ACG
AAA and AAG
AAU and AAC
The two codons ACA and ACG represent the amino acid threonine according to the rules of the genetic code.
What are the universal rules of the genetic code?The universal rules of the genetic code are those based on the incorporation of different amino acids during the translation according to the triplets of nucleotide bases in the resulting mRNA produced in transcription.
Therefore, with this data, we can see that the universal rules of the genetic code indicate the amino acid depending on the triplets of nucleotides or codons in mRNA.
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Sort the statements into the appropriate bin depending on whether they correctly or incorrectly describe some aspect of the electron transport chain and chemiosmosis.
a. Electrons moving from the FMN to Q to cytochrome b are gaining energy.
b. ATP serves as an electron carrier in the electron transport chain.
c. A toxin that causes a leak to form in the inner mitochondrial membrane such that protons could bypass the ATP synthase would disrupt the flow of electrons to O2.
d. The electrons carried by FADH2 have more potential energy than those carried by NADH.
e. A chemical that inactivates cytochrome c so that it can't pass electrons on to cytochrom a would block electron transport and ATP synthesis.
f. The pH of the intermembrane space in the mitochondria would be lower than the pH of the mitochondrial matrix in an actively metabolizing cell.
g. A toxin that causes a leak to form in the inner mitochondrial membrane such that protons could bypass the ATP synthase would prevent oxidative phosphorylation.
Correct: Option a,c,d,e,f are correct.
a. Electrons moving from FMN to Q to cytochrome b are gaining energy.
c. A toxin that causes a leak to form in the inner mitochondrial membrane such that protons could bypass the ATP synthase would disturb the flow of electrons to O2.
What is the role of ATP?ATP (Adenosine Triphosphate) is a molecule that serves as the main energy currency of cells. It stores and transports energy derived from cellular metabolic processes, such as the breakdown of glucose, to be used for various cellular activities, such as muscle contraction, active transport, and biosynthetic reactions.
d. The electrons carried by FADH2 have more potential energy than those carried by NADH.
e. A chemical that inactivates cytochrome c so that it can't pass electrons on to cytochrome a and would block electron transport and ATP synthesis.
f. The pH of the intermembrane space in the mitochondria would be lower as compared to the pH of the mitochondrial matrix in an actively metabolizing cell.
Incorrect:
b. ATP is an electron carrier in the electron transport chain.
g. A toxin that causes leakage to form the inner mitochondrial membrane such that protons could bypass the ATP synthase would prevent oxidative phosphorylation.
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Electrons moving from FMN to Q to cytochrome b are gaining energy, but a toxin caused a leak in the inner mitochondrial membrane would disrupt the flow of electrons to O2.
What is the role of ATP?ATP (Adenosine Triphosphate) is a molecule that serves as the main energy currency of cells. It stores and transports energy derived from cellular metabolic processes, such as the breakdown of glucose, to be used for various cellular activities, such as muscle contraction, active transport, and biosynthetic reactions.
d. The electrons carried by FADH2 have more potential energy than those carried by NADH.
e. A chemical that inactivates cytochrome c so that it can't pass electrons on to cytochrome a and would block electron transport and ATP synthesis.
f. The pH of the intermembrane space in the mitochondria would be lower as compared to the pH of the mitochondrial matrix in an actively metabolizing cell.
Incorrect:
b. ATP is an electron carrier in the electron transport chain.
g. A toxin that causes leakage to form the inner mitochondrial membrane such that protons could bypass the ATP synthase would prevent oxidative phosphorylation.
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which order consists of holometabolous insects? group of answer choices hemiptera thysanoptera collembola coleoptera
Coleoptera (beetles) is the order of holometabolous insects. Holometabolism is the type of insect development that includes a complete metamorphosis, with distinct stages of egg, larva, pupa, and adult.
Holometabolous insects undergo profound transformations in form and function during their life cycle. Beetles belong to the order Coleoptera, which is the largest order of insects, with over 400,000 species described. They are found in nearly every habitat and are characterized by their distinctive forewings, which are modified into hard, protective wing covers (elytra) that meet in a straight line down the back.
Beetles undergo complete metamorphosis, with the larvae hatching from eggs and undergoing several molts before pupating and emerging as adults. The diversity of beetle adaptations, including their mouthparts, legs, and antennae, is a testament to their evolutionary success and ecological importance.
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you measure the absorbance of a bacterial culture two hours after inoculating a sterile medium, and then you continue to measure the absorbance every two hours for a total of three days. if you plotted the absorbance over time, what would the graph look like?
Two hours after inoculating a sterile medium, you test the absorbance of a bacterial culture. Then, over the next three days, you measure the absorbance every two hours. If you plotted the absorbance over time, the graph would increase and then level off and it is referred as measuring absorbance.
The ratio of incident to transmitted radiant power through a sample, ignoring the effects on cell walls, is known as absorbance. As an alternative, absorbance may also be defined for samples that scatter light as the negative logarithm of one minus the sample's observed absorptance. In several technical fields, the phrase is used to describe how experimental measurement data are quantified.
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after large seeds became more common, the average beak size of the medium ground finch increased in size over the course of a few years. this change was most likely a case of
After large seeds became more common, the average beak size of the medium ground finch increased in size over the course of a few years. this change was most likely a case of directional selection.
The medium ground finch's average beak size increased in size over the course of a few years after large seeds became more common; this shift was most likely the result of directional selection because it occurred after large seeds became more abundant.
Individuals in a population whose characteristics fall on one side of the mean rather than the other are more likely to survive and reproduce, which can lead to a process known as directional selection. It has been proved a great number of times in natural populations, employing ways ranging from observation to experimentation.
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