LABORATORY REVIEW
MITOSIS AND MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There are 20 chromosomes in the sex cell of a dolphin. How many chromosomes would you expect it’s body cells to have?
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10
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20
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30
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40
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Explanation:
Detailed explanation-1: -The karyotypes of the three species of dolphin studied here are very similar, all having the same chromosome number (2n = 44) and gross morphology.
Detailed explanation-2: -All 46 chromosomes. No, sex cells have a half set of chromosomes. 23, one from each pair.
Detailed explanation-3: -If an organism has 20 chromosomes, then the number of chromosomes the daughter cells have after mitosis is 20 because when a cell divides by the process of mitosis it produces two clone daughter cells having the same number of chromosomes (20) as the parent cell has.
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