Question

Explain all the factors that determine human evolution in easy language which can be easily understood.

Answer 1

•Genetic drift
•Gene flow
•Natural selection

Answer 2

Hlo Anu

Here is ur answer

∆ At first recall what is evolution?

∆ Evolution is defined as a change in the allele frequency of population through time. The Hardy-Weinberg model predicts that the allele frequency of a population will not change (i.e., evolution will not occur) if the following conditions occur:

•no natural or sexual selection

•no gene flow (immigration or emigration from the population)

•no mutatation

•no genetic drift (changes in allele frequency due to random events)

∆ So we can conclude that factors affecting human evolution are:

•Natural selection
Natural selection refers to the deterministic change in allele frequency due to a differential in fitness among different genotypes. Sexual selection and artificial selection are typically considered as part of natural selection (although that may vary from author to author)

•Genetic Drift
Genetic Drift refers to the stochastic sampling process of individuals

•Mutations
A mutation refers to any spontaneous change (substitution, indel, chromosome duplication, etc...) in an individual's genotype.

•Gene flow (aka. migration)
Gene flow refers to the transfer (migration) of DNA sequences among populations.


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