UPSC Prelims 2002·GS1·science-and-technology·ipr and biotechnology

When one gene control two or more different characters simultaneously, the phenomenon is called

Dalvoy logo
Reviewed by Dalvoy
UPSC Civil Services preparation
Last updated 23 May 2026, 3:31 pm IST
  1. AApomixis
  2. BPleiotropyCorrect
  3. CPolyploidy
  4. DPolytony

Explanation

Pleiotropy is the correct answer because it describes the genetic phenomenon where a single gene influences multiple, seemingly unrelated phenotypic traits or characters. A classic example in humans is sickle cell anemia, where a mutation in one gene affects red blood cell shape, blood flow, and various organ functions simultaneously. As for the other options: Apomixis refers to asexual seed formation without fertilization. Polyploidy is a condition where an organism has more than two complete sets of chromosomes. Polytony is a musical or linguistic term and is not a standard genetic phenomenon related to gene control of characters.
science-and-technology: When one gene control two or more different characters simultaneously, the phenomenon is called
ShareWhatsAppXTelegram

Related questions

More UPSC Prelims practice from the same subject and topic.