Question 30
In human beings, the statistical probability of getting either a male or female child is 50 : 50. Give a suitable explanation.

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Solution

The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. Since the ratio of male gametes containing X chromosome and those containing Y chromosome is 50:50, the statistical probability of male or a female infant is also 50 : 50.

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Question 30
In human beings, the statistical probability of getting either a male or female child is 50:50. Give a suitable explanation.

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