EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have ____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined ) would create a cell with ____ chromosomes.
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23, 46
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46, 23
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2, 4
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50, 100
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Explanation:
Detailed explanation-1: -We can think of meiosis as a way cells very carefully count and divide their chromosomes so that each gamete, each egg or sperm, has exactly 23 chromosomes. Then when an egg with its 23 chromosomes is fertilized by a sperm with its 23 chromosomes, the resulting fertilized egg has exactly 46 chromosomes.
Detailed explanation-2: -Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
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