Practice question

MCQ

Question

Which of the following statement is correct for Heterozygote advantage?

Options

Choose one · Correct answer highlighted

May lead to an increased incidence of autosomal dominant disorders Is very unlikely to be traced to a founder effect Does not distort Hardy Weinberg equilibrium May explain the worldwide distribution of sickle cell disease and malaria Correct

Explanation

Balancing selection maintains HbS allele because heterozygotes resist Plasmodium falciparum malaria while homozygotes suffer sickle disease. This heterozygote advantage explains high allele frequency in malaria-endemic regions, distorting Hardy-Weinberg equilibrium, unrelated to founder effect.

Share this question

Discussion

Comments

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic

Genetic 25 Sep 2026

Codominance - Definition, Symbolism, Examples in Animals, Humans and Plants, and Significance

Explore codominance, its genetic symbolism, and real examples in animals, humans, and plants, highlighting its importance for genetic diversity.

Molecular Biology 30 Aug 2023

The Wobble Hypothesis: Definition, Statement, Significance

Introduction There are more than one codon for one amino acid. This is called degeneracy of genetic code. To explain the possible...

Biology XII Lab Manual 10 Oct 2026

Experiment 16: Flash Cards / Models / Specimens Showing Examples of Homologous and Analogous Organs

AIM To study homology and analogy with the help of models/charts of animals and models/charts/specimens of plants. PRINCIPLE Homologous organs are functionally dissimilar but anatomically or structurally similar. Different modes of life have modified the organs to enable survival...