1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Usimov [2.4K]
3 years ago
7

Explain what factors would cause a cell to stop at each of the 3 cell cycle checkpoints

Biology
1 answer:
Rudiy273 years ago
6 0

Answer and Explanation:

Cyclins and cyclin-dependent protein kinases (CDPKs, cell proteins) also function to control the cell cycle. A group of cyclins: the G1 cyclins, are synthesized during G1 phase and function to activate CDPKs which initiate DNA synthesis at the G1/S checkpoint. The cell fails to progress to S phase if there is no sufficient synthesis of G1 cyclins. After a cell passes through this point, the G1 cyclins are degraded, allowing for another group of cyclins: the M cyclins (mitotic cyclins) to be synthesized. M cyclins activate a second group of CDPKs which allow the cell to pass the G2/M control point and into mitosis.

In the G1/s check point, entrance into the S phase is blocked if the genome is damaged. In the G2/M check point, entrance into the M phase is halted if the DNA replication is incomplete. In the M phase, anaphase blocked if chromatids are not properly assembled.

You might be interested in
Groups of individuals that belong to the same species and live in the same environment
MissTica

Answer:

This is known as Population.

Explanation:

A population is made up of organisms of the same kind living together in the same habitat. Characteristics of a population include the population size, frequency, density, percentage cover and distribution.

Factors that dominantly affect a population comes up especially in size and distribution. These factors include; migration of organisms to other habitats, invasion or colonization by new species, increase or decrease in birth and death rates etc

4 0
2 years ago
In carnations, the allele for red pigmentation (R) is dominant to the allele for no pigmentation (r). Carnations with no pigment
love history [14]
I would have to say <span>This is an example of incomplete dominance but i'm not sure if correct. </span>
8 0
3 years ago
Read 2 more answers
Which fossil type is made from minerals that form stone after the animal decays?
Goryan [66]
The answer is cor-rectally FOSSIL FUELS
i hope that this helps

3 0
3 years ago
How do scientists monitor populations for signs of pollution and why is this important?
Aleksandr [31]

Answer:they monitor it through a modern system machine, it's important because we need to know the population we have.

Explanation: which means are we increasing it reducing in our population

6 0
3 years ago
Identify the characteristics of protists
zimovet [89]
Protist are eukaryotic organisms that cannot be classified as a plant animal fungus. They are mostly unicellular, but some like algae, are multicellular. Kelp, or “seaweed” is a large multicellular protist that provides food, shelter, and oxygen for numerous underwater ecosystems.
4 0
2 years ago
Other questions:
  • When people have gastric bypass surgery, they are having stomach reduced in size surgically. What do you think would be the bene
    7·1 answer
  • Why is it important to eat a balanced diet containing essential vitamins?
    15·1 answer
  • How does a runner acquire an oxygen debt ?
    10·1 answer
  • How does the heart work
    9·1 answer
  • A hiker enters an area where lichens, mosses, and fungi are growing. Which statement best describes this ecosystem?
    9·1 answer
  • The ecological effects of acid rain are often seen in water environments such as streams and lakes, Adid rain flows into streams
    15·1 answer
  • ...Can someone help me identify the stages of these cells?
    11·1 answer
  • Define cellular respiration ​
    12·2 answers
  • hello! I had one quick question I wanted to ask just to make sure I was right. the question is "How do animals obtain the energy
    7·1 answer
  • Which of the following describes a state of equilibrium?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!