Genetic drift operates in

English

Gujarati

Hindi

6.Evolution

medium

Genetic drift operates in

A

small isolated population

B

large isolated population

C

non reproductive population

D

slow reproductive population.

(NEET-2016)

Solution

(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.

Standard 12

Biology

Share

Similar Questions

The chance of elimination of genes from a small population is an example of

medium

The tendency of population to remain in genetic equilibrium may be disturbed by

medium

(NEET-2013)

In a species, the weight of newborn ranges from $2$ to $5\; \mathrm{kg} .97 \%$ of the newbom with an average weight between $3$ to $3.3\; \mathrm{kg}$ survive whereas $99 \%$ of the infants born with weights from $2$ to $2.5\; \mathrm{kg}$ or $4.5$ to $5 \;kg$ die. Which type of selection process is taking place?

hard

(NEET-2019)

Gene flow occurs through generations. Gene flow can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different population of the world, can we not predict human migratory patterns in pre-history and history ? Do you agree or disagree ? Provide explanation to your answer.

medium

Evolution that shift the allele frequency in a study consistent direction is called?

medium