Chromosome Numbers:

Chromosome Numbers: 

·         Chromosome numbers are very specific for each species of an animal in diploid state (2n).

·         Each gamete is with singleset of chromosome called haploid set (n) or genome.

·         Fertilisationmaintains the diploid state of chromosomes.

Chromosome numbers of few animal species are:

Man – 46

Cat – 38

Gorilla – 48

Rat – 42

Frog – 26

Fruit fly – 8

Dog, Hen - 78

Hydra – 32

Cockroach – 34

Pigeon – 80