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blsea [12.9K]
3 years ago
11

What might occur when mitosis is not stopped or occurs quickly due to the presence of cancer.  

Biology
1 answer:
leva [86]3 years ago
4 0
In a cell, there are several parts of it that are there to stop this from happening. Cancerous cells do not have the genetic code to stop growing and reproducing. A regular cell will actually destroy itself it there is a mutation. If it does not get destroyed, it could potentially be tumorous, then it could eventually be cancerous.

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What type of animal model is good to make in science to get an A or A+ in animalia kingdom.
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Which of the statements regarding the cell cycle is true? Group of answer choices It is regulated by cyclins and CDKs. Different
MA_775_DIABLO [31]

Answer:

All of these choices are correct.

Explanation:

Cell cycle is the process of growth and division of cell. It comprises of interphase and mitosis. In interphase the cell grows, replicates its genomic content and prepares itself for division. In mitosis the division occurs.

Cell cycle is controlled by a group of kinases called as Cyclin dependent Kinases (CDKs). They act by phosphorylating their substrates. They are of various types like Cdk1, Cdk2, Cdk4 etc. They become active when they bind to a regulatory protein called cyclin. They are also of various types like Cyclin A, Cyclin B, Cyclin C etc. Level of cyclin and corresponding CDK increases and decreases according to the stage of cell cycle. For example in S phase of cell cycle concentration of cyclin A and E shoots up. CDK2 is able to bind to these cyclin molecules and hence it becomes active.

Cell cycle has major checkpoints where the condition of cell is analysed before it proceeds to the next stage of cycle. If any abnormality is detected, repair mechanism is activated or the cell is killed. Checkpoints do not allow cell cycle to proceed in damaged cells.

p53 is a tumor suppressor protein which can halt cell cycle when it detects some abnormality in cell. It usually acts in G1/S checkpoint (before the DNA replication starts in cell) and G2/M checkpoint (before the cell division begins). Hence, all of the above statements are true.

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3 years ago
Transmission of microbes by direct contact includes: a.drinking contaminated water. b.touching a contaminated countertop. c.inha
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Answer:

B is correct

Explanation:

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How much energy is needed to start the process of glycolysis
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