If a diploid cell is treated with colchicine, then it becomes

The diagrammatic representation of the chromosomes of an individual is called

Number of autosomal chromosomes in Drosophila

Frequency of Down’s syndrome increases when the maternal age is

Sex-linked characters are

Gynandromorphs develop in Drosophila when the two cells in the two-celled proembryo will have one of the following chromosomal sets