Question

Butterfly is different from grasshoppers as in the former

A

Sperms do not have sex chromosomes

B

Egg cells have two sex chromosomes

C

All the sperms have sex chromosome

D

All the egg cells lack sex chromosome

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Answer 1

Answer:

d is the correct answer

Answer 2

Answer:

The correct answer will be option C. i.e. All the sperms have sex chromosomes.

Explanation:

In butterflies -

• the female is heterogametic i.e. contains two types of sex chromosomes represented by Z and W.
• the males are homogametic which contains only one type of sex chromosome represented by Z and Z.

In grasshopper-

• the female is homogametic which contains two X chromosomes.
• the male is heterogametic which contains either an X chromosome or lacks sex chromosomes, represented by XO.

Based on the above information it can be concluded that sperms cells of butterflies will be containing at least one sex chromosome or it is Z.

Whereas sperms of grasshopper will be containing either an X chromosome or not contain any of the sex chromosomes.  

So, in butterflies, all of the sperms will be having sex chromosomes whereas its not necessary that every sperm cell in grasshopper contains a sex chromosome

So, option (C) is the correct answer.