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What are some the main reasons of Nondisjunction in mitosis?

What are some the main reasons of Nondisjunction in mitosis?

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A. From interphase through anaphase
B. From G1 of interphase through metaphase
C. From metaphase through telophase
D. From anaphase through telophase
E. From G2 of interphase through metaphase

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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3 Answers

c.Dorothy

C.Dorothy

Answered on Dec 08, 2017

Mitosis is the phase when a cell is divided into two nuclei during the cell cycle. Even though the cells are supposed to divide, there are times when they do not. During nondisjunction at least a pair of chromosomes do not divided and so there are an odd number of chromosomes. The five main stages of mitosis are prophase, prometaphase, metaphase, anaphase and telophase.

Before these five stages take place, the mitosis process goes through the interphase where the cells begin and try to get ready for the next five stages. During nondisjunction in mitosis, this takes place during the G2 phase where the cell is about to divide. Then it enters into the interphase and metaphase without the cell dividing appropriately.

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John Adney

John Adney

Answered on Jan 16, 2017

Why? I don't get it.
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John Smith

John Smith

Answered on Dec 09, 2016

From G2 of interphase through metaphase
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