The alteration in chromosomes results due to

Assertion: Alteration in chromosomes results in abnormalities or aberrations Reason : Genes are known to be located on chromosomes.

The deletion in chromosomes number 16 results in

The deletion in chromosomes number 16 results in

Structural alterations in chromosomes are

By which process there is a gain of segment of DNA which results in alteration in chromosome? (a) Insertion (b) Duplication (c) Both (a) and (b) (d) Deletion

Translocation of a portion of chromosome 21 results into a condition knowns as

Loss of chromosome segment is due to