Question

Xᵒ is the chromosome with gene for colour blindness and X is the chromosome with normal gene. Which of the following individuals is the carrier for colour blindness?

1. XᵒY
2. XY
3. XᵒXᵒ
4. XᵒX​

Answer 1

Explanation:

Some of these, called X and Y chromosomes, determine if you are male or female at birth. Males have 1 X chromosome and 1 Y chromosome, and females have 2 X chromosomes. The genes that can give you red-green color blindness are passed down on the X chromosome.