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Chapter 10: Q. 13 (page 276)

The chromosomes become visible under a light microscope during which stage of mitosis?

a. prophase

b. prometaphase

c. metaphase

d. anaphase

Short Answer

Expert verified

The correct answer is A.

Step by step solution

01

Step. 1 Introduction

A light microscope is one science laboratory apparatus or device that identifies, magnifies, and enlarges extremely small items using light waves.

02

Step. 2 Explanation of correct option

The nucleolus dissolves during prophase, and the chromosomes condense by becoming visible.

03

Step. 3 Explanation for the incorrect answer.

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

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

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

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Most popular questions from this chapter

The first level of DNA organization in a eukaryotic cell is maintained by which molecule?

a. cohesin

b. condensin

c. chromatin

d. histone

Attachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis?

a. prophase

b. prometaphase

c. metaphase

d. anaphase

Name the common components of eukaryotic cell division and binary fission.

Briefly describe the events that occur in each phase of interphase.

Chemotherapy drugs such as vincristine (derived from Madagascar periwinkle plants) and colchicine (derived from autumn crocus plants) disrupt mitosis by binding to tubulin (the subunit of microtubules) and interfering

with microtubule assembly and disassembly. Exactly what mitotic structure is targeted by these drugs and what effect would that have on cell division?
See all solutions

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