Comparing Plesiosauria and Pterosauria, Pterosauria lost the most genera in the mid-Cretaceous extinction event. The Y-axis on the chart shows the number of genera lost, with Pterosauria losing more genera than Plesiosauria.
Plesiosauria is an extinct group of aquatic reptiles that lived during the Mesozoic Era. These animals had long necks, four flippers, and a large tail. They had a streamlined body and small heads, and were well-suited for life in the oceans. Pterosauria is an extinct group of flying reptiles that lived during the Mesozoic Era. These animals had wings that were made of skin and supported by a network of long, slender bones. They had long necks, short tails, and heads that were larger than their bodies. Pterosaurs had strong jaws and sharp teeth, and were well-suited for life in the skies.Learn more about plesiosauria and pterosauria:
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the tully is a prominent rock layer of the Cayuga lake basin. It stands out visibly between the moscow below it and the Geneseo above it. WHat could cause this difference in the appearance of the rock layers? answer key
Shales weather in a pattern that is referred to as decreasing. Compared to limestone or dolomite, which weather relatively slowly, they erode more quickly.
How rocks in an eroded basin?Since the shales would wear considerably more quickly around it if the limestone had been tilted on its edge, a valley would form on each side of the limestone ridge.
It is similar to how the ridge would remain between two rivers that erode the formations at different angles where the various shales are exposed.
Therefore, limestone or dolomite, which weathers relatively slowly, they erode more quickly.
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which of these compounds does not reduce an animal's ability to digest plant tissues: a) silica b) cellulose c) tannins d) hemicellulose e) all of the above. all of the above.
Typical substances found in plant tissues include silica, cellulose, tannins, and hemicellulose. Animals cannot digest silica, hence it does not affect their capacity to digest plant tissues. However, other chemicals may have an impact on digestion.
The most prevalent carbohydrate in nature, cellulose is a structural element of plant cell walls. Although cellulose cannot be broken down by animals' digestive system microorganisms due to a lack of the essential enzymes, this allows for the release of nutrients from plant tissues.
Tannins, on the other hand, are substances that can attach to digestive system enzymes and proteins, making them less available for digestion. This may result in less efficient nutrient absorption as well as decreased digestibility of plant tissues.
Similar to cellulose, hemicellulose is a component of plant cell walls and is not digested by animals. However, digestive tract microorganisms have the ability to break it down, further releasing nutrients from plant tissues.
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The biochemical reaction that joins two amino acids to form a dipeptide is accompanied by:_________
The biochemical reaction that joins two amino acids to form a dipeptide is accompanied by the release of a molecule of water (H2O).
Peptidase enzymes catalyse this activity, sometimes referred to as a peptide bond formation or condensation reaction. In this reaction, a water molecule and a covalent bond (-CO-NH-) are created when an amino acid's carboxyl group (-COOH) combines with another amino acid's amino group (-NH2). The two amino acids are joined by this bond to create a dipeptide, a little piece of a protein.
An essential stage in the creation of proteins, which are composed of lengthy chains of amino acids, is the production of a peptide bond between two amino acids. This reaction is an important stage in the process of protein synthesis because the amino acid composition of a protein defines its unique three-dimensional structure and function.
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in regions where natural disturbances are the leading cause of tree cover loss, describe one strategy that would be best suited to mitigate the effects of tree cover loss in this region when the natural disturbance has passed.
Planting trees on sites where forests have indeed been cleared can help restore ecosystems that have been harmed. Motivate people to lead environmentally friendly lives.
What techniques are employed to sustainably maintain the rainforest?This rainforest canopy is protected through selective logging for mature trees and subsequent replacement. So because younger trees are given more room and sunshine to grow, this strategy enables the forest to regenerate. A new tree is always planted for every one that is cut down thanks to planned and regulated logging.
What strategies for adaptation do you use inside a tropical rainforest?As you can see from the adaptations listed below, plants can survive in the jungle. Although having roots in the earth, lianas are woody vines that climbed up trees to catch the light. In the canopy, their blossoms or leaves grow. Trees may reach the sun because of their tall, slender trunks.
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Your model helped you demonstrate the chemical process as your body goes through to give you nutrients how do you know those reactions are taking place even though you can’t see them
Answer:
it’s is F :)
Explanation:
in general, atp is generated in catabolic pathways and expended in anabolic pathways. True/False ?
Atp is typically produced in catabolic processes and used in anabolic pathways, which is accurate.
What is ATP?Adenine, a nitrogen base, and ribose, a sugar molecule, combine to form adenosine, which is then combined with three phosphate molecules to form ATP. Adenosine is known as adenosine monophosphate when there is only one phosphate molecule present (AMP).
Adenosine diphosphate is what it is termed if it contains two phosphates (ADP). Although adenosine is an essential component of ATP, the phosphate molecules are what actually counts when it comes to supplying energy to a cell and driving cellular functions.
Adenosine's most energy-dense chemical structure is ATP, which contains three phosphates. In the 1920s, ATP was first identified. German scientist Karl Lohmann, who was researching muscle contractions, isolated what is now known as adenosine triphosphate in a lab.
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what kinds of molecules are released by metabotropic receptors that may open ion channels and initiate the synthesis of second messengers?
The kind of molecules released by metabotropic receptors that may open ion channels and initiate the synthesis of second messengers is the G protein.
Metаbotropic receptors аre а subtype of membrаne receptors thаt do not form аn ion chаnnel pore but use signаl trаnsduction mechаnisms, often G proteins, to аctivаte а series of intrаcellulаr events using second messenger chemicаls. Chemicаl messengers bind to metаbotropic receptors to initiаte а diversity of effects cаused by biochemicаl signаling cаscаdes. G protein-coupled receptors аre аll metаbotropic receptors.
Metаbotropic receptors аre not themselves ion chаnnels. Neurotrаnsmitter binding triggers а signаling pаthwаy, which mаy indirectly open or close chаnnels (or hаve some other effect entirely).
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What are some ways in which plants defend themselves from herbivores? Describe two physical defenses and two chemical defenses
Physical defenses:
Plant structural traits such as leaf surface wax, thorns or trichomes, and cell wall thickness/ and lignification form the first physical barrier to feeding by the herbivores.
Chemical defenses:
Secondary metabolites such act as toxins affect growth, development, and digestibility reducers form the next barriers that defend the plant from subsequent attack.
Answer: leaf surface wax, thorns or trichomes and cell wall thickness/ and lignification
Explanation:
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. other includes hard shells, thorns{modified branches} and spines {modified leaves}
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a key danger that had to be overcome in the movement of plants to terrestrial habitats was the threat of .
A key danger that had to be overcome in the movement of plants to terrestrial habitats was the threat of desiccation.
Extreme drying leads to excessive dryness, also referred to as desiccation. In biology and ecology, the term "desiccation" refers to the drying out of a living organism. Desiccated microorganisms can only exist for a finite period of time since they are unable to grow and reproduce. Desiccation does not entirely sterilize since as soon as water is added, the bacteria will start to spread again.
On their evergreen yew, arborvitae, juniper, and pine trees and bushes, many homeowners discover dead, reddish-brown leaves every spring. One or two branches, the entire tree, or only the brown needle tips on one side of the plant may show symptoms.
The outermost portion of the branches on the side of the tree facing the wind or a source of radiated heat, such as a brick wall or street facing south or west, generally sustain the most serious damage.
Winter desiccation, one type of common winter damage, occurs when the amount of water lost by the leaves is greater than the amount absorbed by the roots.
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. food levels in an ecosystem are called a. producer level b. consumer-level c. pyramid d. trophic level
The correct answer is d. Producers, primary consumers, secondary consumers, and tertiary consumers are all trophic levels.
What is food level?The phrase "food level" refers to the number of food safety precautions required to guarantee that food is safe to eat. This involves using safe food handling practices, keeping food at the appropriate temperatures, and ensuring that food is properly prepared. Food safety labels and certifications are also used at the food level to verify that food is safe and free of pollutants.
The correct answer is d. trophic level. Trophic levels are the various locations that organisms hold in the food chain or food web of an environment. Producers, primary consumers, secondary consumers, and tertiary consumers are the several trophic levels. Plants and other autotrophs that utilise photosynthesis to manufacture their own food energy are examples of producers. Herbivores that eat producers are the primary consumers. Carnivores that eat main consumers are known as secondary consumers. Tertiary consumers are the food chain's apex predators, devouring both primary and secondary consumers.
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What type of mutation involves the genetic material breaking off?
Deletion mutation is a type of mutation which involves the breaking off of the genetic material.
Mutations or genetic mutation are basically the changes which occur in the genetic sequence, and are the main cause of diversity among different organisms. These genetic changes basically occur at a number of different levels, and can have a very widely differing consequences. In biological systems which are able to reproduce, mutations can be inheritable and can cause changes in the offspring.
Deletion mutation is a type of mutation wherein a chunk of DNA breaks off and gets removed from the DNA sequence.
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To measure the acceleration due to gravity on a distant planet, an astronaut hangs a 0. 095-kg ball from the end of a wire. The wire has a length of 1. 5 m and a linear density of 3. 10 10-4 kg/m. Using electronic equipment, the astronaut measures the time for a transverse pulse to travel the length of the wire and obtains a value of 0. 056 s. The mass of the wire is negligible compared to the mass of the ball. Determine the acceleration due to gravity
The acceleration due to gravity on this planet is approximately 9.8 m/s^2, which is similar to Earth's gravitational acceleration.
The acceleration due to gravity (g) can be calculated using the period of the pendulum and its length. The period of a pendulum (T) is given by the equation:
T = 2π * √(L/g)
Where L is the length of the pendulum. Rearranging for g, we get:
g = (4π^2 * L) / T^2
We can use the length of the pendulum (L), which is given as 1.5 m, and the period of the pendulum (T), which is given as 0.056 s, to calculate g:
g = (4π^2 * 1.5 m) / (0.056 s)^2
g = 9.8 m/s^2
So, the acceleration due to gravity on this planet is approximately 9.8 m/s^2, which is similar to Earth's gravitational acceleration.
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you do two 1:5 serial dilutions on an actively growing bacterial culture broth. doing a plate count of your final serial dilution gives you 30 cfu/ml. what is your original concentration of bacterial culture broth?
750cfu/ml is the original concentration of bacterial culture broth.
What is bacterial culture broth?
Although drinking broth culture may sound delightful, it is not a good idea. The name of this growth medium, which is put inside broth tubes to allow bacteria to thrive there, comes from the components that are typically found in broth tubes: beef extract, peptone, and table salt. However, any liquid media used to cultivate any kind of bacterial species can be referred to as broth culture. Broth media can be found at medical facilities, pathology labs, and research labs all around the world. Learn more about it now.
In pathology labs all over the world, broth cultures are regularly employed to help identify the kinds of bacteria causing a patient's illness. For many different sorts of medical practitioners, especially those handling urgent cases, it is an essential diagnostic tool.
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Evaluate this statement. Is it correct? Pick the option that has the best argument for/against this claim
"Anaerobic respiration is only used when aerobic respiration is not an option."
Answer:
Explanation:
This statement is not entirely correct. While aerobic respiration is the most efficient way for cells to produce ATP (adenosine triphosphate), which is the energy currency of cells, anaerobic respiration can occur even when oxygen is available.
Anaerobic respiration, also known as fermentation, is less efficient and produces less ATP compared to aerobic respiration. However, it can occur in the absence of oxygen or in conditions where oxygen is not readily available, such as during high-intensity exercise when there is not enough oxygen to keep up with energy demand. Anaerobic respiration can also occur in certain microorganisms, such as some bacteria and yeast.
Therefore, a better statement would be "Anaerobic respiration is used when aerobic respiration cannot produce enough ATP to meet energy demand, or when oxygen is not available."
Can someone help fill out these?
For hybrid seed color Yy and Yy are:
The genotype - male YY, female Yy
The phenotype - male Yy, female yy
Possible genotypes and number of each: YY (1), Yy (2), yy (1)
Possible phenotypes and number of each: YY (1), Yy (2), yy (1)
Genotypic ratio: 1 : 2 : 1 and Phenotypic ratio: 3 : 1.
For purebred dominant seed shape RR and RR are:
The genotype - male RR , female RR
The phenotype - male RR, female RR
Possible genotypes and number of each: RR (4), Rr (0), rr (0)
Possible phenotypes and number of each: RR (4), Rr (0), rr (0)
Genotypic ratio: 4 : 0 : 0 and Phenotypic ratio: 4 : 0.
For hybrid purple flowers Pp and white flowers pp are:
The genotype - male Pp, female Pp
The phenotype - male pp, female pp
Possible genotypes and number of each: PP (0), Pp (2), pp (2)
Possible phenotypes and number of each: PP (0), Pp (2), pp (2)
Genotypic ratio: 0 : 2 : 2 and Phenotypic ratio: 2 : 2.
What are genotypic ratios?The genotypic ratio indicates the number of times genes for specific traits are crossed and an organism's feature can be seen in the offspring. The genotypic ratio for this cross is 1:2:1.
In animals and plants, each gene has two alleles or variants, one from each parent. In the phenotypes, these are not always distinguishable.
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condensation of chromosomes continues throughout which phase of mitosis?
The four phases of mitosis are prophase, metaphase, anaphase, and telophase. Prophase is when chromosome condensation takes place. The centrioles simultaneously travel to the opposing poles.
A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA strands in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
In order to preserve the integrity of the DNA molecule, these proteins condense and adhere to it with the help of chaperone proteins. These chromosomes have a complicated three-dimensional structure that is crucial for controlling transcription.
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the effect of high levels of adp is to in cellular respiration. a. increase the activity of specific enzymes b. decrease the activity of specific enzymes c. have no effect on the activity of specific enzymes d. slow down the pathway
The effect of high levels of ADP is in cellular respiration increases the activity of specific enzymes. (Option: a)
ADP (Adenosine diphosphate) is a molecule that plays a crucial role in cellular respiration. It acts as an energy currency, transporting energy from one reaction to another in the form of phosphate groups. In the presence of high levels of ADP, there is an increase in the activity of specific enzymes involved in cellular respiration.
Key points:
ADP acts as a signal to the cell that energy is needed.High levels of ADP stimulate the activity of enzymes involved in ATP (Adenosine triphosphate) synthesis.ADP serves as a substrate for the enzyme ATP synthase, which catalyzes the production of ATP from ADP. The increase in ADP levels leads to an increase in the activity of ATP synthase, leading to an increase in ATP production.ATP is the main source of energy for cellular processes, and the increase in its production leads to an increase in cellular energy.Learn more about cellular respiration here:
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what is the atp yield for one mole of glucose oxidized by the pathway that uses the nonphosphorylating gapdh enzyme?
Only 4 molecules of ATP are produced during non phosphorylation process.
Oxidative phosphorylation is a process which produces most of ATP that is produced during cellular respiration. Glycolysis produces 2 ATP molecules. Citric acid cycle produces 2 ATP molecules while during non-phosphorylation, only four ATP are produced which occurs in the absence of oxygen during anaerobic respiration.
A number of protein complexes anchored in the inner membrane of mitochondria, including the electron transport chain and ATP synthase, use the process of oxidative phosphorylation to convert energy into ATP.
The majority of the ATP required for higher animals and plants to sustain life is produced by oxidative phosphorylation, which is also in charge of establishing and preserving metabolic equilibrium.
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most of the water that enters a plant via the roots leaves the same plant by the process of question 2 options: transpiration plasmolysis osmosis root pressure
Most of the water that enters a plant via the roots leaves the same plant by the process of transpiration.
Transpiration is the process by which water vapor is lost from a plant through its leaves. Water enters the roots of a plant and is transported upward through the stem and into the leaves, where it evaporates from the surface of the leaves. Plasmolysis is the process by which cells lose water and become flaccid, but it does not contribute to the overall water balance of the plant in the same way as transpiration. Osmosis is the diffusion of water molecules through a semi-permeable membrane and is an important process in the movement of water into and out of plant cells, but it is not the primary process by which water is lost from a plant. Root pressure is the pressure that is generated by the roots of a plant when they are actively absorbing water, but it is not a significant factor in the overall water balance of the plant.To know more about transpiration visit:
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explain the concept of race from the perspective of genetics and evolutionary biology and sociology.
Answer:
A young scientist definition defines races as distinct evolutionary lineages within a species. An evolutionary lineage is a population of organisms characterized by a continuous line of descent such that the individuals in the population at any given time are connected by ancestor/descendent relationships.
Explanation:
Let’s start first with race, which refers to a category of people who share certain inherited physical characteristics, such as skin color, facial features, and stature. A key question about race is whether it is more of a biological category or a social category. Most people think of race in biological terms, and for more than 300 years, or ever since white Europeans began colonizing populations of color elsewhere in the world, race has indeed served as the “premier source of human identity” (Smedley, 1998, p. 690)
answer the following ?
Who developed our current biological system of classification? What is his system based on?
the rough er is so named due to the presence of which structures on the surface of the membrane?
Rough ER is named for its rough appearance, which is due to the ribosomes attached to its outer cytoplasmic surface.
What are the functions of a cytoplasm?The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.
What causes cytoplasm?Cytoplasmic streaming occurs due to the motion of organelles attached to actin filaments via myosin motor proteins. However, in Chara corallina, the organization of actin filaments is highly ordered. Actin is a polar molecule, which means that myosin only moves in one direction along the actin filament.
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What are the roles of covalent bonds and hydrogen bonds in the structure of DNA?
Thanks for your help!
Each linear thread has covalent bonds that firmly bind the bases, sugars, and phosphate groups together (both within each component and between components). A base from one strand pairs complementary with a base from the other to form hydrogen bonds between the two strands.
The structure of DNA is a double helix, which is made up of two connected strands that loop around one another to resemble a twisted ladder. Deoxyribose and phosphate groups alternately form the backbone of each strand. One of the four bases—adenine (A), cytosine (C), guanine (G), or thymine—is joined to each sugar (T).
All of an organism's future protein synthesis will be governed by the genetic information encoded in its DNA. DNA is located in the cell nucleus of eucaryotes. Two Complementary Chains of Nucleotides Make Up a DNA Molecule. A Heredity Mechanism is Provided by the DNA Structure.
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What disrupts the secondary structure of proteins?
Answer:
The secondary structure arises from the hydrogen bonds formed between atoms of the polypeptide backbone.
What is one advantage of a true coelom over a pseudocoelom? ... A true coelom allows the body wall muscles to contract without hindering
A true coelom has the following benefits over a pseudocoelom: The muscles in the body's wall can contract freely when there is a true coelom. The correct answer is option(a).
The benefit of coelom over pseudocoelom is that real coelom forms the digestive lot and digestive scheme complex. The coelomic fluid of the real coelom acts as a scaffolding and assists frame processes.
The benefit of a true coelom is the talent of the central mesenteric (mainly combinational fabric) coating to delay the main gut event of the animal. Otherwise, in those mammals accompanying a party crater secondhand in movement, importance would attract the gut unhappy and severely decrease material content. The condition of bearing many lines of symmetry that all travel a main point. the characteristic of being separable into symmetrical halves on either side of a singular plane.
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The complete question is:
What is one advantage of a true coelom over a pseudocoelom?
a) A true coelom allows the body wall muscles to contract without hindering
b) is entirely encircled by endoderm.
c) does away with the requirement for a circulatory system.
d) permits contraction of the body wall muscles without impairing digestion.
male bison have 30 chromosomes in their spermatozoa. how many chromosomes are found in a bison's heart cells?
The spermatozoa of male bison contain 30 chromosomes, and the heart cells of a bison contain 60 chromosomes.
The number of chromosomes in heart cells?Our hearts have 46 chromosomes in each cell, exactly like every other somatic or non-sex cell in the body, as humans have 23 pairs of chromosomes. Pairs of chromosomes exist.
The number of chromosomes in spermatozoa?Chromosomes 13, 18, 21, X, and Y, out of the 23 found in human spermatozoa, are crucial because a higher prevalence of defects in these chromosomes can result in miscarriages or new life (Pang et al., 1999, 2005, 2010; Rubio et al., 2001).
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what is an additional amount added to the total purchase price
Answer: The Tax
Explanation: Taxes
6. What substance causes death by affecting the heart's ability to send electrical b
signals?
a. sodium pentothal
b. potassium chloride
c. arsenic
d. mercury
Potassium chloride, is the substance that causes death by affecting the heart's ability to send electrical signal.
What are electrical signals?Electrical signals are waves of energy that carry information from one place to another. They are created by the flow of electrons through a circuit, and can be analog or digital. Electrical signals are used to power and communicate with a wide range of electronic devices, from cell phones to computers also appliances.Electrical signals are a critical component of modern life, and are used in a variety of ways.
In context of the above statementPotassium chloride is a salt which, when introduced into the body, has the effect of disrupting the normal electrical flow in the heart. This can lead to cardiac arrest and death, as the heart is unable to send out the necessary electrical signals to keep itself beating.
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By interfering with the heart's ability to send electrical signals, potassium chloride results in death. It can quickly lead to cardiac arrest if injected too quickly or in a large dose at a time.
Is potassium chloride bad for human health?Overdosing on potassium chloride can lead to hyperkalemia, which may also require medical attention. Hypokalemia and hyperkalemia can cause serious health issues, such as heart and kidney failure. Anyone showing signs of either ailment ought to seek medical attention.
What is the purpose of potassium chloride?A potassium salt which is used to treat hypokalemia is potassium chloride. A white crystal or crystalline powder used in buffer solutions, fertilizers, explosives, the treatment of hypokalemia, replenishing electrolytes, and other applications.
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Help me with these questions!
Cell size is limited by the surface area to volume ratio. As cells grow, the ratio decreases, making it more difficult for the cell to obtain nutrients and get rid of waste.
The primary stages of the cell cycle are interphase (G1, S, G2) and the M-phase (mitosis). During interphase, the cell grows and replicates its DNA, while the M-phase involves the division of the replicated chromosomes into two identical daughter cells.
How to explain the information regarding cellsMitosis is only one stage of the cell cycle and produces two genetically identical daughter cells. However, it does not produce new cells, as the daughter cells formed during mitosis are still part of the same parent cell.
Cyclins are regulatory proteins that control progression through the cell cycle. They are produced at specific points in the cell cycle and bind to cyclin-dependent kinases (CDKs), which then phosphorylate target proteins, leading to changes in the cell's behavior and allowing progression through the cycle.
The cancer cell cycle is different from a normal cell cycle in several ways. Additionally, cancer cells often have defects in checkpoints, which normally serve to prevent cell division if DNA is damaged. This allows the cancer cells to divide even if their DNA is damaged, leading to the accumulation of genetic mutations.
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