Study the following statements and select correct ones.
I. Female grasshoppers have two X-chromosomes.
II. The number of chromosomes in male and female birds is same.
III. Male birds have a pair of Z-chromosomes.
IV. The genetic makeup of the sperm determines the sex of the child in humans.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

All except III & IV

I, II, III and IV

All except II

All except I

answer is D.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Female grasshoppers have two X-chromosomes. Female individuals typically have two X chromosomes (XX), while males have only one X chromosome.
The number of chromosomes in male and female birds is the same. Females have autosomes + ZW chromosomes.
Males have autosomes + ZZ chromosomes.
In humans, the sex of the child is determined by the type of sex chromosome carried by the sperm that fertilises the egg. Sperm can carry either an X chromosome or a Y chromosome. If an X-carrying sperm fertilises the egg, the resulting zygote will have two X chromosomes and develop into a female (XX). If a Y-carrying sperm fertilizes the egg, the zygote will have one X and one Y chromosome and develop into a male (XY).

Watch 3-min video & get full concept clarity