Genetic drift operates in

A small isolated population
B large isolated population
C non reproductive population
D slow reproductive population.

Verified Solution

Answer & Solution

Correct Answer

(A) small isolated population

Step-by-step Solution

Detailed explanation

(a) : The random changes in gene frequencies in a population occurring by chance alone rather than by natural selection are called genetic drift or Sewall wright effect. The effects of genetic drift are most marked in very small isolated population, although it occurs in all populations.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List \(I\) with List \(II\) : Choose the correct answer from the options given below :

List \(I\)	List \(II\)
\(A.\) Down's syndrome	\(I.\) \(11^{th}\) chromosome
\(B.\) \(\alpha -\)Thalassemia	\(II.\) \(X\) chromosome
\(C.\) \(\beta -\)Thalassemia	\(III.\) \(21^{st}\) chromosome
\(D.\) Klinefelter's syndrome	\(IV.\) \(16^{th}\) chromosome

NEET 2024 Medium

Which one of the following is the starter codon?

NEET 2016 Medium

Explore more questions on app

From NEET

Explore more questions on app

List \(I\)	List \(II\)
(A) Axoneme	(I) Centriole
(B) Cartwheel pattern	(II) Cilia and flagella
(C) Crista	(III) Chromosome
(D) Satellite	(IV) Mitochondria