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Question
The number of chromosomes in woman gamete are
The number of chromosomes in woman gamete are
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Solution
The correct option is A 23
Human follow XX- XY mechanism of sex determination in which females have forty-six chromosomes arranged in twenty three homologous, homomorphic pairs. Males have twenty-two homomorphic pairs and one heteromorphic pair, the XY pair. During meiosis, all the gametes produced by females contain only the X chromosome (22 A + X; total 23), whereas males produce two kinds of gametes, 1/2 gametes with X- and 1/2 with Y-chromosome (22 A + X and 22 A + Y; total 23). Fertilization of egg (22 + X) with sperm carrying 22+X chromosomes results in female child (44A + XX; total 46). Fertilization of egg (22 + X) with sperm carrying 22+Y chromosomes results in male child (44A + XY; total 46). Correct option is A.
Human follow XX- XY mechanism of sex determination in which females have forty-six chromosomes arranged in twenty three homologous, homomorphic pairs. Males have twenty-two homomorphic pairs and one heteromorphic pair, the XY pair. During meiosis, all the gametes produced by females contain only the X chromosome (22 A + X; total 23), whereas males produce two kinds of gametes, 1/2 gametes with X- and 1/2 with Y-chromosome (22 A + X and 22 A + Y; total 23). Fertilization of egg (22 + X) with sperm carrying 22+X chromosomes results in female child (44A + XX; total 46). Fertilization of egg (22 + X) with sperm carrying 22+Y chromosomes results in male child (44A + XY; total 46). Correct option is A.
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