English

What is sex determination? Explain the mechanism of sex determination in case of birds. -

Advertisements
Advertisements

Question

What is sex determination? Explain the mechanism of sex determination in the case of birds.

Answer in Brief

Solution

Sex determination refers to the process by which sex is ascertained.

Sex determination mechanism in birds :

  1. The ZW-ZZ system determines sex in birds.
  2. Male birds are homogametic, whilst females are heterogametic.
  3. Males generate sperm that contains the 'Z' sex chromosome.
  4. Females lay two types of eggs, one with the Z chromosome and the other with the W chromosome.
  5. A male offspring is created when a Z carrying egg is fertilised by a sperm. When a W-bearing egg is fertilised, female children are produced.

shaalaa.com
  Is there an error in this question or solution?
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×