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Chapter 11: Q. 21 (page 295)

What is the function of the fused kinetochore found on sister chromatids in prometaphase I?

Short Answer

Expert verified

Fused kinetochore assists in sister chromatid co-migration.

Step by step solution

01

Step 1. Introduction

The kinetochore is a disc-shaped complex protein that is associated with centromere.

02

Step 2. Explanation

During metaphase I, homologous chromosomes are arranged in the metaphase plate. In anaphase I, they are separated and move towards the opposite poles but sister chromatids are not separated until meiosis II. So the function of fused kinetochore which is formed during meiosis I is to assist each spindle microtubules that are attached with the tetrad and ensure that it joins to both sister chromatid and co-migrate.

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Most popular questions from this chapter

What is the ploidy of the most conspicuous form of most fungi?

a. diploid

b. haploid

c. alternation of generations

d. asexual

Explain why sexual reproduction is beneficial to a population but can be detrimental to an individual offspring.

Which type of life cycle has both a haploid and diploid multicellular stage?

a. asexual life cycles

b. most animal life cycles

c. most fungal life cycles

d. alternation of generations

What structure is most important in forming the tetrads?

a. centromere

b. synaptonemal complex

c. chiasma

d. kinetochore

Does crossing over occur during prophase II? From an evolutionary perspective, why is this advantageous?
See all solutions

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