Q. Consider the following statements:
1.Y chromosomes are only present in males whereas X chromosomes are present in both male and females.
2.X chromosomes have lesser number of genes and DNA whereas Y chromosomes have a larger number of genes and DNA.
Select the correct statements using the codes given below:

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A
Notes:

Statement 1 is correct. Y chromosomes are only present in males whereas X chromosomes are present in both male and females.

Statement 2 is incorrect. X chromosomes have larger number of genes and DNA whereas Y chromosomes have a lesser number of genes and DNA.

Source: The Hindu