Biology, Eighth Edition (Raven)

Chapter 11: Sexual Reproduction and Meiosis

The Function of Cohesin

View the animation below, then complete the quiz to test your knowledge of the concept.



1.

Cohesin complexes
A)mediate the condensation of chromosomes.
B)promote the relaxation of chromosomes.
C)hold a chromosome’s sister chromatids together.
D)allow crossing-over between homologous chromosomes.
E)facilitate the chromosome’s binding to the nuclear membrane.
2.

The arms of the sister chromatids dissociate from each other during ________ of mitosis.
A)prophase
B)interphase
C)metaphase
D)anaphase
E)telophase
3.

The sister chromatids of a chromosome fully separate during ________ of mitosis.
A)prophase
B)interphase
C)metaphase
D)anaphase
E)telophase
4.

Cohesin complexes associate with the chromosomes after chromosome condensation has taken place.
A)True
B)False
5.

The cohesin complexes of the centromeric region are the last ones to be degraded.
A)True
B)False
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