Question

Satellite chromosomes have

• A. Primary constriction only
• B. Secondary constriction only
• C. Tertiary construction only
• D. Both primary and secondary constriction

Answer 1

The correct option is D Both primary and secondary constriction

Chromosomes with satellites are called Satellite chromosomes. The small knob like structure present outer to the secondary constriction is called Satellite.

A.Primary constriction – small, spherical shaped present in the chromatid of the chromosome.

B.Secondary constriction – small, spherical shaped structure present in addition to the primary constriction is called secondary constriction.

C.Tertiary constriction – it is not present in the chromosomes.

So, the correct option is ‘Both primary and secondary constriciton’.