Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 11 PCB Single Correct MCQ
Published on: August 12, 2026

The phenomenon of pleiotropism refers to -

A
Presence of two alleles, each of the two genes controlling a single trait.
B
A single gene affecting multiple phenotypic expression.
C
More than two genes affecting a single character.
D
Presence of several alleles of a single gene controlling a single crossover.

Share this question

For Instagram sharing, use “Apps” on mobile or copy the link.

Text Solution

Verified by Experts
The correct answer is:
B

When a single gene affects multiple phenotypic expressions that are apparently unrelated, the gene is called a pleiotropic gene, and the phenomenon is called pleiotropism. Pleiotropy is derived from a Greek word meaning more ways. A simple example of pleiotropy is phenylketonuria, a disease. It is a genetic disorder caused by the low metabolism of the amino acid phenylalanine in the body's cells.

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

CG
CGP Question Assistant Question Bank + AI Help
Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.
Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.