The Migration Theory Is Used to Explain Migration; It Suggests

question 93

Short Answer

The migration theory is used to explain migration; it suggests that migration depends on the supply and demand for labour, both in the sending area as well as in the receiving area.

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Definitions:

Alleles

Different versions of a gene that can exist at a single locus on a chromosome, contributing to the diversity of phenotypes.

Population

A group of individuals of the same species living and interbreeding within a given area.

Allele Frequency

Allele frequency refers to how common an allele is in a population, expressed as a proportion or percentage of all alleles for a given gene in the population.

Stabilizing Selection

Natural selection that acts against extreme phenotypes and favors intermediate variants; associated with a population well adapted to its environment. Compare with directional selection and disruptive selection.