The shorter and longer arms of a submetacentric chromosome are referred to as :

1. s-arm and l-arm respectively

2. p-arm and q-arm respectively

3. q-arm and p-arm respectively

4. m-arm and n-arm respectively

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 2. p-arm and q-arm respectively

By convention the shorter arm of a chromosome is the p-arm (petite) and the longer arm is the q-arm.

In a submetacentric chromosome the centromere is slightly off-centre, so one arm is slightly shorter. Option 2 is correct.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?