Question

Define the terms.
i)Genetic drift.
ii)Natural selection.
iii) Geographical isolation.

plz do define in simple definition. ​

Answer 1

• Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error). Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
• Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
• Geographic isolation is a term that refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species. Typically geographic isolation is the result of an accident or coincidence.

Answer 2

Genetic drift:-

Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).

Natural selection:-

Natural selection is the process through which populations of living organisms adapt and change.

Geographical Isolation:-

Geographic isolation is a term that refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species.