Human Genetics: Concepts and Applications (Lewis), 9th Edition

Chapter 2: Cells

Mitosis and Cytokinesis

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



1.

Which of the following events do NOT occur in prophase of mitosis?
A)DNA condenses to form chromosomes
B)nuclear membrane breaks down
C)nucleolus breaks down
D)chromosomes are replicated
E)mitotic spindle begins to form
2.

The mitotic spindle fibers attach to chromosomes via special structures termed
A)centrioles.
B)asters.
C)kinetochores.
D)centrosomes.
E)keratins.
3.

Which of the following statements about microtubules during anaphase is TRUE?
A)those attached to chromosomes elongate, while those that are unattached shorten
B)those attached to chromosomes shorten, while those that are unattached elongate
C)both attached and unattached microtubules shorten
D)both attached and unattached microtubules elongate
E)both attached and unattached microtubules elongate at first and then shorten
4.

Centromeres divide during metaphase.
A)True
B)False
5.

Cytokinesis in plant cells occurs by means of a cleavage furrow.
A)True
B)False
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