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Chapter 10: Q. 11 (page 276)

Unpacking of chromosomes and the formation of a new nuclear envelope is a characteristic of which stage of mitosis?

a. prometaphase

b. metaphase

c. anaphase

d. telophase

Short Answer

Expert verified

The correct option is D.

Step by step solution

01

Step. 1 Introduction

At mitosis, an eukaryotic cell divides to become two genetically similar daughter cells by a precisely synchronized nuclear division.

02

Step. 2 Explanation for correct option.

During telophase, chromosomes appear at opposing poles, and each pair of chromosomes is surrounded by fresh nuclear envelope material.

03

Step. 3 Explanation for incorrect option

Option a. Kinetochores occur at the centromeres during prometaphase, and microtubules bind to kinetochores.

Option b. During metaphase, chromosomes align and sister chromatid becomes connected to a spindle fibre.

Option c. Chromosomes get driven toward opposing poles during anaphase.

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