Cell researchers are investigating the role of cyclins on mitosis and cell division. They notice that cyclins build up, cause the cell to progress through the cell cycle, then break down, thus ending the different stages of the cell cycle. A failure of the cell to break down which cyclin would most directly lead to increased cell division?
A) Cyclin A
B) Cyclin B
C) Cyclin D
D) Cyclin E
Answers
A) Cyclin A
B) Cyclin B
C) Cyclin D
D) Cyclin E
The answer is: M-phase cyclins form M-CDK complexes and drive the cell's entry into mitosis; G1 cyclins form G1-CDK complexes and guide the cell's progress through the G1 phase; and so on. ... Specific enzymes break down cyclins at defined times in the cell cycle. When cyclin levels decrease, the corresponding CDKs become inactive.
The inability of the cell to break down cyclin D would most directly lead to increased cell division.
What is cell division?Cell division is the process by which cells in the body divide their content and duplication of the chromosomes to produce new daughter cells.
In the cell cycle, proteins known as cyclins are required.
Cyclin D is required at the initiation and termination stage of cell division.
Therefore, based on the cell cycle diagram, inability of the cell to break down cyclin D would most directly lead to increased cell division.
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Related Questions
Please Help!
Q. Explain the purpose of DNA and RNA.
Answers
Answer:
DNA is the structure that defines your genetic characteristics while RNA are proteinous substances that act as messengers to carry information to and from the nucleus of the cells.
what regulates the growth and development of all the body cells
Answers
1. What makes up a phenotype of a plant or animal?
2. What are the genes that produce a phenotype?
3. The study of heredity is called _________________.
4. Who is considered the “father” of genetics?
5. Genes had two copies each. These copies are called ___________.
6. What are Mendel’s 4 findings from his study?
7. The nucleus contains genetic material, or ______. (This is short for _______________________.)
8. How many PAIRS of chromosomes do humans have?
9. True/False: All species have the same number of chromosomes.
10. What are the four kinds of bases that join together in DNA strands?
11. What three people were instrumental in discovering DNA?
12. ___________ _________ make up proteins, and ____________ provide the code to make those proteins.
13. The human genome contains ________________ genes.
14. Describe sequencing.
15. Human DNA is 96% identical to the DNA of ___________________.
16. What are mutations and what do they cause?
17. Adaptations are caused by a ________________ in the DNA of an organism.
18. Describe one way studying genetics of organisms can be beneficial?
19. What are some ethical concerns we have about genetic studies?
Answers
Answer:
#1 The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
#2 Phenotype
#3 Genetics
#4 Gregor Mendel
#5 an allele
#6 Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
#7 The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins.
Explanation:
Identify the features of organisms from their different kingdoms ?
Answers
Answer:
All organisms in the Animal kingdom are Heterotrophs meaning, unlike plants which produce their own food, animals feed upon other organisms.
Explanation:
Writing your own quiz from the information you learned in class and during your reading will help improve your study skills.
A.
True
B.
False
Answers
Answer:
A. true
Explanation:
Writing your own quiz on the information you studied will force you to go over the information and find all the important details
A manufacturing plant has been found guilty of polluting the nearby river. This is _______ pollution.
Answers
Point source pollution
Explanation
Mark Brainliest please
Question 1: One of the central themes in biology is how DNA, RNA, and proteins are related. Describe how genetic information flows between those types of molecules. Include the results of the processes of transcription and translation? ( Will Mark Brainliest if answered correctly. Do Not Repost Someone Else's Answer that is already on Brainly or any other websites please).
Answers
Answer:
it flows by the centeral dogma
Answer:
Explanation:
DNA →RNA→ Protein
in the nucleus protein synthesis is copied from DNA onto mRNA thru transcription
messenger mRNA leaves nucleus & goes to cytoplasm attaching to ribosome.
tRNA (transfer RNA) decodes & translate info on the attached mRNA via translation &
gets amino acids corresponding to this information from the pool of free amino acids in the cytoplasm, and brings them to the ribosome where they are joined together into a chain and thus the protein is formed
kjdxnjkshicohjdioshco ijdsiochoidshovchdohcoidshiochoixhcoihoxhi oxzhioih ioxho ihzoxh ozhxio hozh
Answers
Answer:
kbaf seifhiwksfi kjwas fuesb
Explanation:
iuk ashefuoaeygsh foilkagsbuxvj iskhfewpios ie hiaedghbuad gbv .yes.
8. An elevated ridge is located in the Indian Ocean. In the middle of the ridge underwater volcanoes and mild
earthquakes occur. Continents on one side of the ridge are moving away from continents on the other side of
the ridge. Which of the following best describes the tectonic activity occurring along the ridge?
A. Two ocean plates are sliding past each other.
B. An ocean plate is subducting under another ocean plate.
Two ocean plates are moving away from each other (diverging).
Ď. Two continental plates are moving away from each other (diverging).
Answers
Answer:
A
Explanation:
Use the information to draw an inference about why red beryl has been found in only four places on Earth.
Answers
Answer:
The volcanoes with that type of lava are only found in four places on Earth, it can't be made anywhere else.
Explanation:
Red beryl is one of the rarest minerals in the world. Because it is so rare, red beryl is about 1000 times more valuable than gold. Read the passage that describes how red beryl forms. Use the information to draw an inference about why red beryl has been found in only four places on Earth.
Which of the following substances is least likely to diffuse across the phospholipid bilayer of the cell membrane?
A) large hydrophobic molecules B) hydrophobic small molecules
C) carbon dioxide D) small ions
Answers
Answer:
Hi, could you answer my question: What is a plan in science for a 6 QWC question?
Explanation:
Help!!
How did reduced methane concentrations in the atmosphere affect Earth?
Earth warmed.
Earth cooled.
Volcanic activity decreased.
Volcanic activity increased.
Answers
Answer:
Earth cooled
Explanation:
Here are all the answers for that quick check:
1. Which option orders the events chronologically, from earliest to latest.
Answer: Single-celled organisms increase atmospheric methane concentrations. Photosynthesizing bacteria release oxygen into the sea. Oxygen concentrations increase in the atmosphere. Many new animal species evolve.
2. Which forms of life were dominant in the Mesozoic era?
Answer: Reptiles
3. How did the success of photosynthetic bacteria change Earth’s atmosphere?
Answer: increased oxygen concentration
4. How did reduced methane concentrations in the atmosphere affect Earth?
Answer: Earth cooled.
5. Which characteristic defines the Paleozoic era?
Answer: Animals with shells and hard parts were dominant for the first time.
You're welcome.
Answer:
Earth cooled.
Explanation:
The reduced methane concentrations in the atmosphere affect Earth :
Particles of gas and dust released into the atmosphere during a volcanic eruption affect the climate. Most of the particles emitted by the volcano cool the planet by blocking incoming solar radiation. The cooling effect can last from months to years, depending on the nature of the eruption.Therefore, the Earth is cooled.
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a
What organelle in a plant is chlorophyll found
in?
Answers
Answer:
Chloroplasts in the Leaf
At plasma glucose levels of greater than 300 mg/100 mL plasma, what happens to the glucose that is not reabsorbed
Answers
Answer:
I think it's gets stored up in the liver
Explanation:
Something's including glucose that are in access in the body gets stored up in the body
1. Observe: Look through the descriptions of the large and small organs. A. Which of the large
organs allow nutrients and water to pass through their walls
Answers
Answer:
The small intestine and large intestine
Explanation:
The small and large intestines were designed to allow nutrients to pass through their walls.
What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities?
Answers
name three reason why blood goes to the lungs
Answers
Answer:
Blood without oxygen returns through the veins, to the right side of your heart. From there it is pumped to your lungs so that you can breathe out the carbon dioxide and breathe in more oxygen.
Explanation:
What structure within the eye could cause distortions?
Answers
The right and left coronary arteries are the first branches off the a. aorta. b. superior vena cava. to. pulmonary trunk. d. pulmonary veins. g
Answers
Answer:
answer is A aorta
Explanation:
aorta is the answer
Why are invasive species a problem for ecosystems?
They greatly disrupt existing food webs.
They introduce a new species to the region.
Most ecosystems support only a few different species.
Invasive species rarely survive in new ecosystems.
Answers
Answer:
A) they greatly disrupt existing food webs.
Explanation:
Invasive species change the food web in an ecosystem by destroying or replacing native food sources.
Answer:
Option 1: They greatly disrupt existing food webs.
Explanation:
Invasive species: As the name suggests, any organism which is not native to the habitat and disrupts the growth of the existing ecosystem where it invades or is introduced are called invasive species.Examples of invasive species: Red Lionfish, Green Iguana, Longhorn Beetle.Characteristics of invasive species:High tolerance to an adverse environment,Rapid reproductive rate.Enhanced adaptability.Increased dispersal ability.Invasive species have the ability to cause extinction or threat to the native plants and animals. They can also cause destruction to the natural resources found in the place. Harming economic and ecological growth.For more information:
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Hey, I need help with these questions please:
Answers
Answer:
I think letter A po.. HEHE not sure
Answer:
micronutrients or trace elements are involved in the maintenance of protein structure
is having glasses a acquired trait or is it inherited
Answers
Answer: It can be both but it is mainly an inherited trait but environmental things can make your eye sight worse or better which can end up being an acquired, but like I said its more so an inherited trait.
Explanation:
Difference between chemiosmosis and substrate level phosphorylation?
Answers
Answer:
The main difference between substrate level phosphorylation and oxidative phosphorylation is that substrate level phosphorylation is a direct phosphorylation of ADP with a phosphate group by using the energy obtained from a coupled reaction whereas oxidative phosphorylation is the production of ATP from the oxidized .Answer:
The main difference between substrate level phosphorylation and oxidative phosphorylation is that substrate level phosphorylation is a direct phosphorylation of ADP with a phosphate group by using the energy obtained from a coupled reaction whereas oxidative phosphorylation is the production of ATP from the oxidized ...
Explanation:
I hope I've helped
Question 6
The electrical charge of a particle called
Answers
Answer:
The electrical charge of a particle is called an electric charge.
Explanation:
Electricity always comes in units of the Coulomb, which is the unit of measurement for electric charges. One Coulomb is defined as follows: "the quantity or magnitude of electricity carried by an electron in the electrostatic field around a point on the Earth with coordinates (latitude, longitude)". We can use units like volts and amperes to communicate this kind of data now, but typically you'll see it written as Cs.
To do some simple arithmetic with these units you need to know that one Couloth will equal 93 millimeters squared per second times per second (mC/s*ms).
Multisensory learning increases the ability to identify creative solutions by what percent?
ONLY ANSWER FROM THE ANSWER CHOICES!
double
fifty percent
seventy-five percent
seventy-five times
Answers
Multisensory learning is able to double the ability to identify creative solutions.
What is Multisensory learning ?The term multisensory learning has to do with the involvement of more than one sense organ in the learning process. In this case, a person can be able to learn by the use of various sense organs at once.
It has been shown that Multisensory learning is able to double the ability to identify creative solutions.
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which insect is recognized by nod like receptors?
Answers
Answer:
It is used for detecting bacteria
Pregunta urgente ¿Que son horiciones? No se si es de biología o de ciencias
Answers
Answer:
Explanation:
Heres where to get your answer
https://www.info.com/serp?q=website%20medical&segment=info.0546&s1aid=3788024678&s1cid=11804561937&s1agid=114484240723&s1kid=kwd-944088888&utm_source=adwords&gclid=CjwKCAiAm7OMBhAQEiwArvGi3IMQUyr3aRG07nCggQt-8rAAgyPT3rJedCcJxTAl1ve9LJwgIxq21RoC4yQQAvD_BwE
What does the earliest terrestrial evidence for the Hadean tell us about the
conditions on Earth?
Answers
Answer:
Although no one knows when the first outer crust of the planet formed, some scientists believe that the existence of a few grains of zircon dated to about 4.4 billion years ago confirm the presence of stable continents, liquid water, and surface temperatures that were probably less than 100 °C (212 °F).
Drag each item to indicate whether it exhibits fracture or cleavage.
Answers
Answer:
From left to right
Explanation:
Cleavage, cleavage, fracture
The first item exhibit a cleavage. The second item exhibit a cleavage. The third item exhibit a fracture.
In mineral science, Cleavage is the process by which a mineral breaks or splits through smooth planes with a pattern because the material is stratified in a layered pattern. It generally seems regular since it fractures along its plane of weakness.
A fracture happens when a mineral splits with fractures and does not produce a particular definite shape. It frequently emerges in an erratic and irregular pattern.
From the three picture given, the first and the second item exhibit cleavage, and the third item exhibit fracture.
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Why do most food chains only two, three or rarely ,four consumers after the green plant producer?
Answers
Answer:
It is rare to find food chains that have more than four or five links because the loss of energy limits the length of food chains. At each trophic level, most of the energy is lost through biological processes such as respiration or finding food
Explanation:
Answer:
Because so much energy is lost to life processes.
Explanation:
As you progress through each trophic, each organism on that level loses energy gained from the previous trophic. This is due to losing energy through wasted material (e.g. bones) and to life processes, 7 of which can be remembered by MRS GREN:
M ovement
R espiration
S ensitivity
G rowth
R eproduction
E xcretion
N utrition
This means that each time, energy is wasted and lost from the food chain. More than four trophics would result in so much energy being lost from the initial trophic (producer), that it would be largely pointless!