How many pairs of chromosomes are present in human beings?
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In a normal human being having normal genetic constitution 23 pairs of chromosomes are present of which 22 pairs are autosomes and 1 pair is sex chromosome or allosome. But deviation can be seen in case of disorders involving chromosome number ie. euploidy and aneuploidy. read more
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females. read more
Source: ghr.nlm.nih.gov
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