Question

Wing of a bat, leg of a cheetah, claw of a mole and hand of a man are analogous organs.

• A. There are many animals in which the sex chromosomes are switched.
• B. In birds, males have the same type of sex chromosome, while females have a distinctive pair.

Answer 1

The correct option is B

In birds, males have the same type of sex chromosome, while females have a distinctive pair.

Wing of a bat, leg of a cheetah, claw of a mole and hand of a man show a common pattern in the arrangement of bones, even though their external form and functions are different. It indicates that all the vertebrates have evolved from a common ancestor and these organs are called homologous organs.