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What will they do if mammalian cells receive a go-ahead signal at the G1 checkpoint?



A. Move directly into telophase.
B. Complete the cycle and divide.
C. Exit the cycle and switch to a nondividing state.
D. Show a drop in MPF concentration.
E. Complete cytokinesis and form new cell walls.

This question is part of Mitosis and Meiosis - Chapters 12-13 - AP Biology
Asked by Muitran, Last updated: Sep 20, 2019

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2 Answers

C. Bernthal

Its kind of my job to give answers

C. BernthalTeacher, MA, P.hD, Seattle
Teacher, MA, P.hD, Seattle

Answered on Jan 29, 2019

The correct answer to this question is B. DNA stands for deoxyribonucleic acid and is a self-replicating material that nearly all living organisms have. DNA carries the organism's genetic information. Cells, which contain DNA, normally divide to multiply, causing the organism to grow, reproduce, and replenish dead cells.

At the G1 checkpoint, the cell ensures that there is no damage to DNA or threat from external factors. If damage or threat is detected, the cells will not be allowed to complete the process and divide. If the signal is given that everything is okay, then the cells will complete the process and divide.

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John Smith

John Smith

Answered on Jan 12, 2017

Complete the cycle and divide.
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