Identify the correct statement :
(a) Female of many birds has a pair of dissimilar ZW chromosomes, while the males posses a pair of similar ZZ chromosomes.

Identify the correct statement : Female of many birds has a pair of similar ZZ chromosomes, while the males possess a pair of dissimilar ZW chromosomes.

In which female has a pair of XX chromosomes

In Drosphila female has a pair of chromosomes

Identify and write the correct statement : (a) Drosophila male has one X and one Y chromosome. (b) Drosophila male has two X chromosomes.

Maize has 10 pairs of chromosomes.How many linkage groups does it have ?

How many pairs of homologous chromosomes are present in male Drosophila?

Identify the correct and wrong statements :- (a) Human skeleton has 206 bones (b) There are 12 pairs of ribs in human (c ) Sternum is present on the dorsal side of the body (d) All mammals (except of few) have 8 cervical vertebrae. (e) Ribs are bicephalic.

A pair of chromosomes carrying dissimilar alleles for a particular character.

Identify and write the correct statement: (a) In Grasshopper males two sex chromosomes are X and Y types (b) In Grasshopper males there exist XO type of sex-determinants.

A male honeybee has 16 chromosomes whereas, its female has 32 chromosomes. Give one reason.