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NEET 2020
Exam
NEET
Year
2020
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2020 · Zoology · Principles of Inheritance and Variation

The best example for pleiotropy is:

The best example for pleiotropy is:

Options

  1. ASkin colour
  2. BPhenylketonuria
  3. CColour blindness
  4. DABOABO Blood group

Correct answer

B. Phenylketonuria

Step-by-step solution

In pleiotropy, a single gene product may produce more than one effect or control several phenotypes depending on its position. The basis of pleiotropy is the interrelationship between the metabolic pathways that may contribute towards different phenotypes.

Example: Phenylketonuria, sickle-cell anemia, etc.

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