CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cross-over occurs during prophase I
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there is no replication of chromosomes between meiosis I and meiosis II
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in plants, spindle fibers are attached to the centriole
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synapsis occurs during prophase I
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Detailed explanation-1: -Expert-Verified Answer The correct answer is “meiosis does not contribute to the genetic diversity in populations".
Detailed explanation-2: -The spindle fibers from the other side of the cell attach to the other sister chromatids in the chromosome. They attach at a point called the kinetochore, which is a disk or protein that is on each side of the centromere. The spindle fibers will move the chromosomes until they are lined up at the spindle equator.
Detailed explanation-3: -So, the correct answer is ‘Meiosis produces gametes that contain one complete haploid set of chromosomes’
Detailed explanation-4: -Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis.