NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Gene flow happens as a result of ____, members of a population exchange genes with one another.
A
Mating
B
Speciation
C
Recombination
D
Gene Exchange
Explanation: 

Detailed explanation-1: -gene flow, also called gene migration, the introduction of genetic material (by interbreeding) from one population of a species to another, thereby changing the composition of the gene pool of the receiving population.

Detailed explanation-2: -Gene flow within a population can increase the genetic variation of the population, whereas gene flow between genetically distant populations can reduce the genetic difference between the populations.

Detailed explanation-3: -Gene flow is also called gene migration. Gene flow is the transfer of genetic material from one population to another. Gene flow can take place between two populations of the same species through migration, and is mediated by reproduction and vertical gene transfer from parent to offspring.

Detailed explanation-4: -Gene flow-also called migration-is any movement of individuals, and/or the genetic material they carry, from one population to another. Gene flow includes lots of different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries.

Detailed explanation-5: -Gene pool frequencies do not change as a result of migrations in or out of a population. Gene flow occurs only as a result of migrations. Gene flow can cause new alleles to enter a population’s gene pool.

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