The sex chromosomes in male grasshopper is XX.

The sex chromosomes in female butterfly is XX.

Name the sex chromosomes in man.

How many X-chromosomes are present in male grasshopper ?

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

Fill up the blank Arrangement of sex chromosomes in klinefelter's syndrome is ________

Non-sex chromosomes are called allosomes.

What the sex chromosome constitution in male individual of human, bird, grasshopper and butterfly.

A gamete with any sex chromosome is called heterogametic.

Due to nondisjunction of chromosomes during spermatogensis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A + O). If these sperms fertilise normal eggs (22A + X), what types of genetic disorders respectively appear among the offspring ?