Multiple Choice
In Drosophila melanogaster,polytene chromosomes are produced when
A) a chromosome breaks and rejoins with another section of the same chromosome.
B) a cell divides several times before the chromosomes are duplicated.
C) chromosomes are duplicated repeatedly without a corresponding nuclear division.
D) a segment of a chromosome is duplicated during an unequal crossing-over event.
E) characteristic banding patterns form on the chromosomes.
Correct Answer:
Verified
Correct Answer:
Verified
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