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Home  arrow Chapter 8: The Cellular Basis of Reproduction and Inheritance  arrow Student Home  arrow Pre-Test

Pre-Test



This activity contains 12 questions.

Question 1.
Asexual and sexual reproduction differ in that sexual reproduction _____.


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Question 2.

During binary fission, the replicated bacterial chromosome attaches to the plasma membrane by specialized anchor proteins. What is the purpose of this attachment between chromosome and membrane?

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Question 3.
A cell replicates its entire chromosomal DNA only _____.


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Question 4.

Immune system cells enter a resting phase after undergoing mitosis. When activated—for example, by an infection—they can reenter the sequence of events in the cell cycle that leads to cell division. What would be the correct sequence of cell division?

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Question 5.
Which of the following shows mitosis in the correct chronological order?


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Question 6.

Imagine that a human skin cell bypassed the M checkpoint, and then continued into G1 without cytokinesis. If a karyotype were prepared from cells undergoing another round of mitosis, how many chromosomes would be observed in one cell?

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Question 7.
A benign tumor is a condition in which the cells _____.


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Question 8.
A human somatic cell contains _____ chromosomes.


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Question 9.
Asexual reproduction _____.


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Question 10.
During meiosis, the events that occur in _____ are similar to those that occur in _____ of mitosis.


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Question 11.
Crossing over is _____.


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Question 12.

A fragment of chromosome 21 reattaches to chromosome 21, but in the reverse direction. What is the name given to this change?

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