EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All our cells, except sex cells like eggs or sperm, have ____ DNA
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different
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similar
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exactly the same
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half the amount of
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Explanation:
Detailed explanation-1: -Each sperm cell contains half the father’s DNA. But it’s not identical from sperm to sperm because each man is a mixture of the genetic material from his parents, and each time a slightly different assortment of that full DNA set gets divided to go into a sperm.
Detailed explanation-2: -The 23 single chromosomes of the sperm are matched with the 23 single chromosomes of the egg, and this creates a new combination of 23 pairs of chromosomes in the embryo.
There is 1 question to complete.