Which of the following correctly describes th | vedclass

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Question

(B) In grasshoppers,sex determination is of the $XO$ type. The males possess only one $X$ chromosome besides the autosomes,whereas females have a pair

Vedclass · Accepted Answer

In grasshoppers,the male sex is determined by the $XO$ type of sex chromosomes.

Vedclass · Answer

(B) In grasshoppers,sex determination is of the $XO$ type. The males possess only one $X$ chromosome besides the autosomes,whereas females have a pair of $X$ chromosomes. Thus,the presence of a single $X$ chromosome determines the male sex,while the presence of two $X$ chromosomes determines the female sex. Option $A$ is incorrect because in birds,males are homogametic $(ZZ)$ and females are heterogametic $(ZW)$. Option $C$ is incorrect because $XO$ in humans results in Turner syndrome,which is a female with underdeveloped ovaries. Option $D$ is incorrect because in Drosophila,$XX$ chromosomes produce females,not males.

Which of the following correctly describes the mechanism of sex determination in the given example?

Similar Questions

The chromosomal theory of sex determination was propounded by:

Which chromosomes determine the male sex in the $Melandrium$ plant?

In which type of sex determination do both male and female have the same number of chromosomes?

In humans,sex determination is controlled by which of the following?

$(a)$ In humans,males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
$(b)$ Also describe as to who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.

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