Multiple Choice
What function does recombination by crossing-over have in genetic variation during meiosis?
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12. Meiosis
Genetic Variation During Meiosis
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How many different alignments of homologous chromosomes are possible for independent assortment during meiosis in a diploid organism with 3 pairs of chromosomes?
A
4
B
12
C
6
D
8
Verified step by step guidance1
Understand that independent assortment refers to the random orientation of homologous chromosome pairs during metaphase I of meiosis.
Recognize that the number of different alignments possible is determined by the formula 2^n, where n is the number of homologous chromosome pairs.
Identify that in this problem, the organism has 3 pairs of chromosomes, so n = 3.
Apply the formula: calculate 2^3 to determine the number of possible alignments.
Conclude that the number of different alignments of homologous chromosomes is 8, as calculated from the formula.
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