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प्रश्न
Explain with the help of a flow chart that in human beings the father is responsible for the sex (male or female) of the child.
स्पष्ट कीजिए
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उत्तर
Male humans possess 44 + XY chromosomes, while females possess 44 + XX chromosomes. Male and female contribute half of the chromosomes during zygote development; the male can contribute either 22 + X or 22 + Y because he is heterozygous, while the female contributes 22 + X because she is homozygous. The male’s contribution determines the child’s sex.
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