Many of the molecules that actively maintain the integrity of a cell's chromosomes, particularly during DNA replication and mitosis, are involved in crossing over during ____ of meiosis.
A. prophase II
B. prophase I
C. metaphase II
D. metaphase I
E. telophase II
Answer: B
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What will be an ideal response?
Apoptosis is occurring at
a. A. b. B. c. C. d. D. e. E.
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