What is x-linked inheritance?how Diseases are caused by it?

Asked by cbafna66 | 1st Aug, 2014, 08:39: PM

Expert Answer:

Certain hereditary disorders are caused due to recessive genes present on the “X” chromosome. They are called X-linked diseases. Such disorders are common in males than in females. This is because males have only one X chromosome. If the defective gene is present on the X chromosome, it will definitely get expressed in males. However, females have a double dose of X chromosomes. Hence, the effect of any defective gene is masked or suppressed by the other X chromosome.

Diseases caused due to X-linked inheritance: Haemophilia, Colour blindness.

Answered by Sheetal Kolte | 2nd Aug, 2014, 02:45: PM