You are working with cells that have a mutation that decreases activity in a gro

Question

You are working with cells that have a mutation that decreases activity in a growth factor signal transduction pathway. Would you expect would happen in these cells? Select answer: answers: the cells would grow more rapidly the cells will continuously divide even if the DNA is not properly distributed in the daughter cells the cells would grow more slowly or not at all both A and B are true All of the following statements describe a characteristic of some cancer cells EXCEPT: Select answer: answers: are immortal their DNA is damaged they stop dividing when they come into contact with other cells they contain a mutation that causes a protein to be over expressed

Explanation / Answer

Q5-

Ras protein regulates both cell proliferation as well as apoptosis. Ras is an important component of the signaling pathway that is responsible for growth factor-induced cell proliferation, differentiation, or survival. A mutation that will decrease the ras activity will decrease the cell proliferation, differentiation, or survival. Hence the correct answer is option C.

Q6 -

One of the characteristic of cancer cell is uncontrolled proliferation of cell, hence statement given in option C does not goes with the characteristic of cancer cell.

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