Baby rina is a newborn. based on her study of child and adolescent development, rina's mother knows that rina's brain will not be fully developed until she is at least 20 year(s) of age.
Why is a baby's brain so pliable or "plastic"?Extra synaptogenesis enables the usage of extra neurons in other areas. The brain can change itself by creating fresh neural connections as a result of experience.
Why is the term "plastic brain" used?Because neurons may form new or stronger connections with other neurons, our brains are renowned for being "plastic" or flexible. However, if some connections get stronger, neurons must make up for it to avoid being overloaded with information, according to neuroscientists.
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Full Question = Baby Rina is a newborn. Based on her study of child and adolescent development, Rina's mother knows that Rina's brain will NOT be fully developed until she is _____ year(s) of age.
Which of the following best indicates the location of lost contralateral facial muscle control after a corticobulbar tract stroke?
A. Upper facial muscles
B. Lower facial muscles
C. Upper and lower facial muscles
D. Perioral and buccal muscles for assisting speech
The area of decreased contralateral facial muscle control following a corticobulbar tract stroke is best indicated by the lower face muscles.
What is controlled by the corticobulbar tract?The cranial nerves supplying the head and face get upper motor neuron innervation from the corticobulbar tract. A number of motor routes leave the primary motor cortex at the precentral gyrus, which is located in the back of the frontal lobe of the brain.
What symptoms might you have corticobulbar?Muscular weakness, speaking difficulty, and difficulty moving the tongue show as upper motor neuron disease signs and symptoms when corticobulbar tract degeneration is present. The higher motor neurons of the cranial nerves make up the corticobulbar tract.
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which of the following traits of a living organism were demonstrated by the synthetic cell the jcvi researchers made?
The trait of a living organism that were demonstrated by the synthetic cell the JCVI researchers made is growth.
What was the JCVI project?Scientists have created a single-celled synthetic organism that grows and divides much like a regular cell, simulating features of the cell division cycle that underlies and creates healthy living cellular life. This is a first for genetic engineering.
The accomplishment is the result of decades of genome sequencing and analysis by scientists, researching the roles individual genes play within living organisms. It is exhibited in a manufactured unicellular bacteria-like life form called JCVI-syn3A.
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why is metric system used by scientists?
The metric system is used by scientists because it provides a universal methodology to ensure accurate measurements, which is fundamental to obtaining knowledge through the scientific method.
What is the use of measurements in the scientific method?The use of measurements in the scientific method is a key step in order to obtain evidence that can be used to test (either reject or confirm) a hypothesis.
Therefore, with this data, we can see that the use of measurements in the scientific method is key in order to advance in the application of the scientific method.
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Schistosome: How long does it live?
Which of the following is not part of the cytoskeleton element?
a. intermediate filaments
b. actin filaments
c. microtubules
d. centrioles
The cytoskeleton does not contain centrioles. Microtubules make up the centroles. Microtubules, microfilaments, and intermediate filaments make up the intracellular network known as the cytoskeleton.
What are the 3 components of the cytoskeleton?Microtubules, actin filaments, and intermediate filaments make up the cytoskeleton of a cell. These elements aid in the organisation of the cell's components and give the cell its form.
Microtubules: A Cytoskeleton Component?The third main component of the cytoskeleton, microtubules, are hard, hollow rods with a diameter of around 25 nm.
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Based on your knowledge of the serial dilution protocol and predictions for the plating growth, which of the following statements is/are correct? A plate "C 0.1 ml 1:1,000,000* has a good chance of showing many isolated , countable colonies because of the dilution factor.B. Plate "C 0.1 mL 1:1000,000"will have fewer isolated colonies than plate "B 0.1mL 1:100,000" even though both plates received the same volume of inoculum. C. Plate "B 0.1 mL 1:100,000"will have more colonies than the "B 1mL 1:100,000" version.D. Plate "B 1.0 mL 1:10,000" would be predicted to have the fewest colonies because it has the lowest number.
Due to its dilution factor, plate "C 1.0 mL 1:1,000,000" has a significant possibility of displaying several isolated, countable colonies. Even though both plates got the same volume, plate "C 0.1mL 1:1,000,000" will have less isolated colonies than plate "B 0.1 1:100,000".
How can you improve the accuracy of a serial dilution?An accurate serial dilution requires mixing. After each transfer phase, a mixing step utilizing half the volume of the intermediate step is added to provide a precise and constant serial dilution.
What happens during a serial dilution?For instance, 1 ml of the beginning sample is introduced to 9 ml of Dilution Blank Tube 1 to carry out serial dilution. The same process is then carried out, using 1 ml from Tube. Nine milliliters from Tube 3 are added to Tube 2 and so on until the required concentration is obtained.
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Identify the relationship between the following compounds.A) stereoisomers B) same compound C) different compoundsD) constitutional isomers
Stereoisomers and constitutional isomers are classes of isomers which comprised of different compounds. Stereoisomers have same connectivity but different arrangement of atoms in space, while constitutional isomers have different connectivity and arrangement.
What is the difference between constitutional and stereoisomer?Isomers are different compounds that have the same molecular formula but the atoms are arranged in different ways. There are two classes of isomers: constitutional isomers and stereoisomers.
Constitutional isomers have the same molecular formula but different connectivity or arrangement among the atoms are different. Their core IUPAC names are different as well. For example, there are 2 constitutional isomers of butane (C4H10: n-butane and isobutane).Stereoisomers have same formula and identical connectivity, but arrangements of atoms in space are different. The cis-trans geometric isomers (such as cis- and trans-1,2-dimethylcyclopentane) are special types of stereoisomers.Learn more about isomers at :
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10. Several genes in humans in addition to
(1) give rise to recognizable antigens on the surface of
red blood cells. The MN and Rh genes are two exam-
ples. The Rh locus can contain either a positive or a
negative allele, with positive being dominant to nega-
tive. M and N are codominant alleles of the MN gene.
The following chart shows several mothers and their
children. For each mother-child pair, choose the father
of the child from among the males in the right col-
umn, assuming one child per male.
a.
b.
C.
d.
Mother
OM Rh(pos)
B MN Rh(neg)
OM Rh(pos)
AB N Rh(neg)
Child
B MN Rh(neg)
ON Rh(neg)
AM Rh(neg)
B MN Rh(neg)
Males
OM Rh(neg)
AM Rh(pos)
O MN Rh(pos)
B MN Rh(pos)
When loss of a substance from the body exceeds its gain, a person is said to be in _____ balance for that substance.negativepositive
When loss of a substance from the body exceeds its gain, a person is said to be in positive balance for that substance.
Homeostаsis refers to the body’s аbility to physiologicаlly regulаte its inner environment to ensure its stаbility in response to fluctuаtions in externаl or internаl conditions. The liver, the pаncreаs, the kidneys, аnd the brаin (hypothаlаmus, the аutonomic nervous system аnd the endocrine system) help mаintаin homeostаsis.
When a person's loss of a substance from the body exceeds its gain, a person is said to be in a positive balance for that substance because it is а mechаnism in which аn аctivаted component enhаnces or further upregulаtes the process thаt gаve rise to itself in order to creаte аn even stronger response. Positive feedbаck mechаnisms аre designed to аccelerаte or enhаnce the output creаted by а stimulus thаt hаs аlreаdy been аctivаted.
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FILL IN THE BLANK. one of the major advantages of the ___ scientific method is that it allows investigation in natural surroundings.
One of the major advantages of the naturalistic observation scientific method is that it allows investigation in natural surroundings. Hence, the correct answer is naturalistic observation.
What do we mean by scientific method?The scientific method establishes facts in an unbiased manner through testing and experimentation. The fundamental steps are making an observation, formulating a hypothesis, making a prediction, carrying out an experiment, and then evaluating the results. The scientific method is a method of understanding natural processes that combines logical reasoning and carefully supervised experimentation.
When terminology defining distinct boundaries between science and non-science, such as "scientist" and "pseudoscience," first appeared in the nineteenth century, science was undergoing significant institutional development.
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The complete question is: Fill in the blanks - One of the major advantages of the ______ scientific method is that it allows investigation in natural surroundings.
is part of the five i's of culturing microorganisms and is based on visual observations of microscopic and macroscopic growth characteristics.
The Five I's method, which is used to find, develop, examine, and describe microorganisms, consists of inoculation, incubation, isolation, inspection, and identification.
What are the five essential techniques used in laboratories to alter, grow, research, and describe microorganisms?The five "I's" of microbiology—inoculation, incubation, isolation, inspection (observation), and identification—are the basic methods used to study and characterise microorganisms. A little sample of bacteria, called an inoculum, is inserted in culture medium and streaked with a platinum wire probe to grow it.
An illustration of indirect or comprehensive enumeration is spectroscopy. Using a spectrophotometer, the amount of light passing through the culture is used to calculate the number of microorganisms present. It is employed to figure out how many germs are present in food samples.
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FILL IN THE BLANK. the spinal cord and spinal nerves are responsible for ___, which are our quickest reactions to a stimulus.
Reflexes, which are our quickest reactions to a stimulus. The spinal cord and spinal nerves are responsible for sending nerve impulses to and from the brain and around the body to control various functions, including reflexes.
What is spinal cord?The spinal cord is a long, thin bundle of nerves and other tissues that extends from the base of the brain to the lower back. It is an essential part of the central nervous system, carrying nerve signals between the brain and the body. The spinal cord is surrounded by a protective layer of vertebrae, or bones, which make up the spine. It is responsible for many of the body’s motor functions, such as movement, breathing, and posture, and also carries sensory information from the body to the brain. Damage to the spinal cord can result in paralysis, loss of sensation, and other physical impairments. Treatment for spinal cord injuries typically involves a combination of physical therapy, medications, and surgery.
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3. In what tasks would you expect to see a deficit in a lobotomy patient?
a. Orientation in a new apartment
b. Recognizing their spouse
c. Remembering multiplication tables
d
The task to look for deficits in lobotomy patients is A. Orientation in the new apartment
What is a lobotomy?Lobotomy is a brain surgery procedure aimed at calming patients with mental disorders, by damaging or cutting the brain tissue in the prefrontal lobe which is located at the front of the head. This surgery is aimed at patients with mental disorders such as schizophrenia, depression, bipolar disorder, and PTSD. To see the deficit in lobotomy patients can be done by orientation in a new place. But this practice was outlawed in the late 1980s, and now new treatments for mental disorders are being developed.
Your question is not complete, maybe what your question means is :
In what tasks would you expect to see a deficit in a lobotomy patient?
Orientation in a new apartmentRecognizing their spouseRemembering multiplication tablesGathered with his friendsLearn more about the practice of psychosurgery such as prefrontal lobotomies here :
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4. What are some shortcomings of using this model as a replicable of the Earth? Suggest a way that a scientist could create a more accurate model of Earth’s tectonic plates.
Like a jigsaw puzzle, put the continents together one piece at a time. When the "game" is finished, cut and rearrange the pieces to create a new image.
What is tectonic plate?According to the widely recognised scientific hypothesis of plate tectonics, the Earth's lithosphere is made up of several major tectonic plates.
A technique by which a scientist might improve their model of the tectonic plates of Earth.
University of Adelaide's Derrick Hasterok When the "game" was finished, the continents were chopped and reassembled to create a new image. "The continents were pieced together a few pieces at a time, like a jigsaw puzzle."
This knowledge leads us to the conclusion that the continents should be put together one piece at a time, much like a jigsaw puzzle, but after the "game" is finished, it should be cut and rearranged to create a new picture.
Thus, these are some shortcomings of using this model as a replicable of the Earth.
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Which of the following is not a difference between DNA and RNA? a. DNA contains thymine whereas RNA contains uracil b. DNA contains deoxyribose and RNA contains ribose c. DNA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars d. RNA is single stranded and DNA is double stranded
The following is not the difference between DNA and RNA: DNA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars.
Thus, the correct answer is C.
Deoxyribonucleic аcid (DNА) аnd ribonucleic аcid (RNА) аre both types of nucleic аcids. The two molecules аre very similаr in mаny wаys. Both DNА аnd RNА аre mаde of nucleotides аnd hаve the sаme bаsic structure. Eаch one contаins а 5-cаrbon sugаr, phosphаte group, аnd nucleobаses (nitrogenous bаses).
The three mаin structurаl differences between RNА аnd DNА аre аs follows:
RNА is single-strаnded while DNА is double-strаnded.RNА contаins urаcil while DNА contаins thymine.RNА hаs the sugаr ribose while DNА hаs the sugаr deoxyribose.For more information about DNA and RNA refers to the link:
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What three vegetation types make up the fynbos biome
if a bacterial culture contains 1 cell at time zero, 4 cells after 1 hour, and 16 cells after 2 hours, then all except which of the following are true?
If a bacterial culture contains 1 cell at time zero, 4 cells after 1 hour, and 16 cells after 2 hours, then the true statement is that the growth rate is increasing with each generation.
What is Bacterial growth?Bacterial growth may be defined as the process of an increase in the number of bacterial cells rather than the enhancement in their cell size. The growth of these bacterial cells takes place in an exponential manner, i.e., one cell divides into 2, then 4, then 8, 16, 32, and so on.
The growth rate of bacteria is determined by the bacterial growth curve. This represents the number of live cells in a bacterial population over a period of time. There are four distinct phases of the growth curve: lag, exponential (log), stationary, and death.
Therefore, if a bacterial culture contains 1 cell at time zero, 4 cells after 1 hour, and 16 cells after 2 hours, then the true statement is that the growth rate is increasing with each generation.
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Which statement correctly describes the rock cycle?
O A. Igneous rock can only form by heat and pressure.
OB. Metamorphic rock can only form by crystallization.
O C. Magma can only form by compaction and cementation.
O D. Sedimentary rocks form by deposition, burial, and compaction of weathered particles and dissolved chemicals.
Answer: B
Explanation:
Use the
model here to describe the transfer of matter and flow of energy from one trophic level to another within an
ecosystem. All of the following must be addressed in your response to receive full credit:
a
Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food
is broken down and used by the consumer.
b
Explain what happens to the energy that is not transferred from one organism to another.
C Explain why there are typically fewer organisms at the top of an energy pyramid.
D
Use specific numbers
As producers are eaten by primary consumers, who are subsequently eaten by secondary consumers, and so on, energy and matter flow up the trophic levels of an ecosystem.
Describe flow of energy from one trophic level to another within an
ecosystem.
Energy moves from one trophic level, or level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose. Primary producers are then consumed by primary consumers, who are in turn eaten by secondary consumers, and so on.
Through the consumption of another creature, a biomass is passed from one organism to another. It should be emphasized that food is broken down because the organism's biology transforms the biomass that is consumed into tiny molecules like fatty acids, glucose, and amino acids. Energy does not move efficiently from one level to another. Due to poor digestion or heat loss, some of it is wasted. Because there isn't enough energy to support another level, the energy that is transferred as we move up the pyramid is decreased, making it difficult to continue.
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Describe how homeostasis is maintained in relation to the following:
1. Macromolecules
2. Hierarchy of biological organization
3. Cell membrane and cell membrane transport
4. Negative feedback and positive feedback mechanisms
Answer: Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment.
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Explanation:
your welcome
Macromolecules: Homeostasis is maintained in relation to macromolecules by ensuring a balance of nutrient intake and metabolism. The body requires various macromolecules, including carbohydrates, lipids, and proteins, to maintain essential cellular processes. The regulation of blood glucose levels, for example, is important for maintaining homeostasis, and is achieved by the storage and breakdown of macromolecules like glycogen and glucose. Hormonal and enzymatic regulation of macromolecule metabolism ensures a balance of nutrient intake and metabolism to maintain homeostasis.
Hierarchy of biological organization: Homeostasis is maintained at various levels of biological organization. From individual cells to organ systems and the organism as a whole, biological processes are tightly regulated to maintain balance. For example, temperature homeostasis is maintained by the regulation of blood flow and sweat production in the skin, as well as by the hypothalamus in the brain. Similarly, the regulation of fluid and electrolyte balance in the body is achieved through the interplay of different organ systems, such as the kidneys and the endocrine system.
Cell membrane and cell membrane transport: The cell membrane plays a crucial role in maintaining homeostasis by regulating the transport of substances into and out of the cell. Membrane transport mechanisms, including passive diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis, all work together to ensure that the cell maintains a stable internal environment. For example, sodium-potassium pumps in the cell membrane regulate the balance of ions inside and outside of the cell, while the regulation of glucose transporters ensures that glucose levels remain within the optimal range.
Negative feedback and positive feedback mechanisms: Negative feedback mechanisms are important for maintaining homeostasis by counteracting any deviations from the optimal set point. For example, when blood glucose levels rise after a meal, insulin is released by the pancreas to stimulate glucose uptake by cells, which helps to lower blood glucose levels. Positive feedback mechanisms, on the other hand, amplify the initial deviation from the set point. These mechanisms are less common in maintaining homeostasis, but they play an important role in certain biological processes, such as blood clotting and childbirth.
you are performing a whole cell patch clamp recording from a cortical pyramidal neuron. if you set the holding vm to -70 mv, which of the following is most likely?
If you perform whole-cell patch clamp recording of cortical pyramidal neurons, and you set the holding vm to -70 mv, then you are prepared to assess AMPA receptor function.
An electrophysiological technique called whole-cell patch-clamp recording enables the investigation of the electrical characteristics of a sizable portion of the neuron. The micropipette is in close contact with the cell membrane in this configuration, which prevents current leakage and offers more precise ionic current measurements than the previously employed intracellular sharp electrode recording method. Traditionally, whole-cell recordings have been made on neurons in a variety of preparations, such as intact anesthetized or awake animals, dissociated neurons, neurons in brain slices, and cell culture models. In conclusion, this method has made a significant contribution to our understanding of the biophysical characteristics of excitable cells, both passive and active.
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How do differences in primate anatomy affect locomotion patterns?
Answer:
Bipedal locomotion in apes differs from that in modern humans in several respects. The most striking one is that apes have a knee-bending type of locomotion. I don't know but if in which the hip and knee remain considerably flexed throughout the cycle. But it's about their intelligence, and adaptation
Explanation:
regarding the challenges of adulthood, which of the following statements is false? question 7 options: a. The unstable, in-between, self-focused period of time when young adults explore their identities and life possibilities is referred to as generativity.b. Neither adolescence or adulthood can be defined solely in terms of physical maturation since socio-cultural factors help define when we stop being children and become adults.c. How a person manages his or her core relationships during young adulthood will determine whether he or she feels a sense of intimacy or feels isolated from others.d. Adolescence and young adulthood are more emotionally turbulent than midlife or old age
The statement "The unstable, in-between, self-focused period of time when young adults explore their identities and life possibilities is referred to as generativity." is false.
What is generativity?Generativity refers to the psychological concept of middle adulthood (ages 40 to 65), when individuals are focused on contributing to future generations and leaving a positive legacy. It is a time when people may feel a sense of purpose and fulfillment from giving back to their communities and making a positive impact on the world.
The period of time when young adults explore their identities and life possibilities is more commonly referred to as emerging adulthood. It is a time of self-discovery and identity formation, as individuals seek to establish a sense of self and determine the direction of their lives.
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A knife found buried 7 inches deep in the ground would be marked on the evidence collection site map as _____.
A knife found buried 7 inches deep in the ground would be marked on the evidence collection site map as buried evidence.
What would the knife be marked as ?On the evidence collection site map, the knife would be 7 inches deep, marked with a symbol representing a knife, and with its exact location noted on the map using coordinates or a grid system.
The location would be labeled with a unique identifier such as a case number or evidence item number, and the depth of the burial would also be recorded in the evidence collection documentation as buried evidence .
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1.3.3 Quiz: Theoretical Frameworks of Sociology
Question 5 of 10
In her sociological studies, Sima often refers to theoretical frameworks. What
is another word for framework?
A. Determinant
B. Psychological grant
C. Road map
D. Mindset
The correct answer is a road map.
What is a road map?
Road maps frequently use thicker lines or stronger colors to distinguish between important and minor thoroughfares (such as highways vs. surface streets).Smaller-scale maps frequently feature indexes of streets and other routes, whereas printed road maps frequently include an index of cities and other locations identified on the map. These indexes provide a grid reference to the feature's location on the map.A city map inset within a map of a state or province is one example of how inset maps can be used to provide more detail for a particular location.The distance between adjacent cities is frequently displayed as a distance matrix. As a result of its symmetry, only the upper triangle is visible.To know more about road maps, click the link given below:
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a homeostatic control system regulates the activities of cells, tissues and organs so that any change in the
b) The functions of cells, tissues, and organs are governed by a homeostatic control system, which causes a response to be triggered whenever extracellular fluid changes, correcting the change.
What do you mean by a homeostatic control system?The homeostasis of a body controls its internal environment to maintain stability as a physiological response to changes in the external environment. When we discuss the interstitial fluids that surround a cell, we are referring to the environment; yet, when we discuss the environment that surrounds an organism, we are referring to the environment.
In order to maintain a dynamic equilibrium with the shifting external environment, the body's internal environment must be continuously monitored and modified. The adjustment of the body's physiological systems is known as homeostatic regulation.
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Correct question:
a homeostatic control system:
a. regulates the activities of cells, tissues, and organs so that any change in the intracellular fluid initiates a reaction to correct the change
b. regulates the activities of cells, tissues, and organs so that any change in extracellular fluid initiates a reaction to correct the change
c. regulates the activities of cells, tissues, and organs so that any change in the intracellular fluid initiates a reaction that magnifies the change
d. regulates the activities of cells, tissues, and organs so that any change in the extracellular fluid initiates a reaction that magnifies the change
TRUE/FALSE. when a phenotype coded by a particular genotype is not always expressed even when the genotype is there.
When a genotype-coded phenotype is not always expressed despite the genotype's presence, the statement is untrue.
Phenotypes are they always manifested?Completely dominant alleles will always be expressed in the phenotypic of the cell. However, sometimes an allele's dominance is only partially complete. When a cell is heterozygous (having both a dominant and a recessive allele), it might exhibit intermediate characteristics.
Do phenotypes and genotypes correspond?Development + Genotype = Phenotype (in a given environment). We are interested in the relationship between these two in order to consider them in the framework of evolutionary biology. The genotype determines the phenotype in a strictly "genetic" sense.
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determine from the description if each characteristic applies to dna, mrna, or trna . then click and drag each one into the correct category.
DNA contains thymine, double helix, longest chain of nucleotides, and deoxyribose. The mRNA binds to small subunits of ribosomes and carries the genetic code to the ribosomes.
Although it is written in a different chemical form, the information in RNA is basically written in the same language as it is in DNA, the language of a nucleotide sequence. Similar to DNA, RNA is a linear polymer composed of four distinct nucleotide component types that are joined by phosphodiester linkages.
Although RNA contains the bases adenine (A), guanine (G), and cytosine (C), unlike DNA, it also contains the base uracil (U), which replaces the base thymine (T) in DNA. The nucleotides in RNA are ribonucleotides that means they contain sugar ribose.
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Which of the following is NOT a property of ceramics?
A. Malleable
B. Insulators
C. Strong
D. Chemically unreactive.
Answer:
Malleable.
Explanation:
Ceramics are typically known for their strength, hardness, and high melting points. They are also good insulators of heat and electricity, and are generally chemically unreactive. However, ceramics are not malleable, meaning they cannot be easily shaped or bent without breaking. This is because ceramics are brittle and prone to fracture under stress. Therefore, the property that is NOT a property of ceramics is malleability.
which of the following is not true of enzymes? they increase the rate to equilibrium the substrates they recognize are non-specific the reactions they catalyze are specific they are usually proteins, but can be rna
The statement "they increase the rate to equilibrium" is not true of enzymes.
Enzymes are biological catalysts that increase the rate of chemical reactions in living organisms. They do not, however, alter the direction of a reaction or affect the final equilibrium state. Enzymes only increase the rate at which a reaction reaches its equilibrium state, they do not change the equilibrium constant of the reaction. Enzymes recognize specific substrates, the molecules they catalyze, and they bind to these substrates in a highly specific manner. The reaction catalyzed by an enzyme is also highly specific and the enzyme has evolved to only catalyze a single or a few related reactions. Enzymes are typically proteins, but in some cases, RNA molecules can also function as enzymes.In conclusion, enzymes increase the rate of chemical reactions in living organisms, but do not increase the rate to equilibrium. They recognize specific substrates, catalyze specific reactions, and are usually proteins, but can be RNA in some cases.
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