Male heterogamety,which is essential for sex | vedclass

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(D) Male heterogamety refers to a condition where the male produces two different types of gametes,such as $X$ and $Y$ or $X$ and $0$. In humans,males

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Grasshoppers

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(D) Male heterogamety refers to a condition where the male produces two different types of gametes,such as $X$ and $Y$ or $X$ and $0$. In humans,males are $XY$ (heterogametic) and females are $XX$ (homogametic). In grasshoppers,males are $XO$ (heterogametic) and females are $XX$ (homogametic). Since both humans and grasshoppers exhibit male heterogamety,and the question asks for an example,both $C$ and $D$ are technically correct. However,in the context of standard biology curriculum questions,$XO$ type sex determination in grasshoppers is a classic example of male heterogamety. Given the options,$D$ (Grasshoppers) is the most specific example of the $XO$ type of male heterogamety.

Male heterogamety,which is essential for sex determination in new offspring,is observed in which of the following?

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Assertion : In humans,the gamete contributed by the male determines whether the child produced will be male or female.
Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.

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