HEREDITY
MULTIPLE ALLELES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Meiosis I does not have homologous chromosomes and Meiosis II does
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Meiosis I has homologous chromosomes and Meiosis II does not
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Crossing over occurs during Meiosis II, providing genetic variety
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Meiosis I uses PMAT and Meiosis II does not
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Detailed explanation-1: -Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II. In meiosis II, these chromosomes are further separated into sister chromatids. Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.
Detailed explanation-2: -There are two divisions in meiosis; the first division is meiosis I: the number of cells is doubled but the number of chromosomes is not. This results in 1/2 as many chromosomes per cell. The second division is meiosis II: this division is like mitosis; the number of chromosomes does not get reduced.
Detailed explanation-3: -In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas meiosis I produces 2 diploid daughter cells. Genetic recombination (crossing over) only occurs in meiosis I.
Detailed explanation-4: -Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II. Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells. Meiosis II is known as “reductional division” while mitosis is known as “equatorial division”.
Detailed explanation-5: -Terms in this set (7) What is the difference between meiosis I and meiosis II? Meiosis I separates homologous chromosomes and meiosis II separates sister chromatids.