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Effectus [21]
2 years ago
6

If cell cycle regulation is altered, what might be the consequence?

Biology
1 answer:
denpristay [2]2 years ago
6 0
Cancer is the result of unchecked cell division caused by a breakdown of the mechanisms that regulate the cell cycle. The loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. Faulty instructions lead to a protein that does not function as it should
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Cerrena [4.2K]
That is incorrect switch <span> uracil and phosphate groups. </span>
7 0
3 years ago
1. Explain why neither cyclins not kinases alone can cause a cell to progress along in the cell cycle.
Degger [83]
1. Explain why neither cyclins nor kinases alone can cause a cell to progress through the cell cycle.

As cyclin accumulates, it activates their kinases that turn on the pathway to mitotic spindle formation, and so on.

2. How do controls of the cell cycle protect multi-cellular organisms from accumulating large numbers of damaged or defective cells?

The checkpoint control is responsible for multi-cellular organisms for not accumulating large numbers of damaged or defective cells. Checkpoint controls consist of proteins that detect mistakes and damage and quickly halt the cell cycle until repairs are made. When this occurs, the cell is said to be in cell-cycle <span>arrest.

</span>3. What is the difference between a cancerous tumor and metastasis?
Cancer is cause by mutations in the genes that encode these proteins can lead to uncontrolled growth. Cancer is when there is uncontrolled cell growth and reproduction. Metastasis is caused by tumors when they grow and interfere with the surrounding tissue or cells and break off and spread around the body. Cancerous tumors cause metastasis, and tumors are caused by mutations in genes that lead to uncontrolled growth.
4. What are the functions of tumor-suppressor genes and protoncogenes in noncancerous cells?
The genes that encode the checkpoint proteins are called tumor suppressors because they suppress the development of cells into tumors. If mutations inactivate these genes, the cell-cycle break is removed with or without a signal from the outside. Proto-oncogene’s are involved in promoting cell division, mutations can cause them to become oncogenes, or cancer genes which stimulate cells to leave G0 and divide whether or not it is a signal.
6 0
3 years ago
PLEASE HELP! i will give the first person to answer brainliest! Just PLEASE help!
igomit [66]

Answer:

Protozoa are single-celled eukaryotes

Explanation:

Eukaroytes are organisms whose cells have nuclei

3 0
2 years ago
Read 2 more answers
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vivado [14]
Pollution or Carbon Dioxide
5 0
3 years ago
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Question 5 unsaved in a tide pool, 15 species of invertebrates were reduced to 8 after one species was removed. the species remo
sesenic [268]
The species was a keystone species.

Keystone species are the species that ''hold the ecosystem together''.
They have an important role in the trophic networks (food chains) and often they can even afflict changes in the abiotic part of the ecosystem (change the composition of soil, purify the water, lower the effect of the wind etc)
Therefore, when a keystone species is removed it affects greatly the whole ecosystem.
8 0
3 years ago
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