1. Tardigrade
  2. Question
  3. Biology
  4. Assertion: In pigeons, females are heterogametic and males are homogametic. Reason: In pigeons, females have ZW sex chromosomes and males have ZZ sex chromosomes.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion : In pigeons, females are heterogametic and males are homogametic.
Reason : In pigeons, females have $ZW$ sex chromosomes and males have $ZZ$ sex chromosomes.

Principles of Inheritance and Variation

Solution:

In pigeons, $ZW$-$ZZ$ type of sex determination mechanism is found. In this type, the male has two homomorphic sex chromosomes $(ZZ)$ and is homogametic, and the female has two heteromorphic sex chromosomes $(ZW)$ and is heterogametic. There are, thus, two types of eggs: with $Z$ and with $W$, and only one type of sperms, i.e., each with $Z$.