Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2015ZoologyEvolutionActual

Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?

Options

  1. ATransduction
  2. BChromosomal aberrations
  3. CGenetic Drift
  4. DRecombination

Correct answer

D. Recombination

Step-by-step solution

The most common mechanism of genetic variation is recombination. In sexually reproducing organism during gametogenesis, the homologus chromosomes exchanges genetic material by process of crossing over. This produces new combination. It is responsible for variation.

Practice Evolution on Quantrex Academy →

More from Evolution

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Forelimbs of human and bats are homologous. Reason R : Forelim 2026Which of the following is not evidence for evolution ? 2026Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution. 2025Coacervates were discovered by 2019Which one is the oldest in following? 2019Following are the two statements regarding the origin of life. I. The earliest organisms that appeared on the earth were non-green and presumably an aerobes. II. The first autotrop 2017Variation in gene frequencies within population can occur by chance rather than by natural selection. This is reffered to as 2017 Full Evolution list All NEET PYQs