ANIMAL REPRODUCTION AND DEVELOPMENT
ASEXUAL REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a human has 46 chromosomes, how many chromosomes does each body cell (ex. skin cells, nerve cells, muscles cells) have?
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48
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23
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24
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46
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Explanation:
Detailed explanation-1: -In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
Detailed explanation-2: -Normally, each cell in the human body has 23 pairs of chromosomes (46 total chromosomes). Half come from the mother; the other half come from the father. Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born.
Detailed explanation-3: -In plants and animals (including humans), chromosomes reside in the nucleus of cells. Humans have 22 pairs of numbered chromosomes (autosomes) and one pair of sex chromosomes (XX or XY), for a total of 46.
Detailed explanation-4: -For instance, all human cells (except gametes) have 46 chromosomes.
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