객관식
During which stage of meiosis do chromosomes line up along the middle of the cell in a single file?
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9. Mitosis and Meiosis
Meiosis
객관식
During metaphase I of meiosis, the way each chromosome lines up is best described as:
A
identical to the arrangement in mitosis
B
determined by the size of the chromosome
C
random and independent of other chromosome pairs
D
based on the sequence of DNA
검증된 단계별 안내1
Understand that during metaphase I of meiosis, homologous chromosome pairs (tetrads) line up along the metaphase plate.
Recall that each pair of homologous chromosomes aligns independently of other pairs, a concept known as independent assortment.
Recognize that this alignment is not determined by chromosome size or DNA sequence, nor is it identical to mitosis where individual chromosomes line up rather than pairs.
Conclude that the correct description of chromosome alignment during metaphase I is that it is random and independent for each homologous pair.
This random and independent alignment contributes to genetic variation in gametes by producing different combinations of maternal and paternal chromosomes.
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