Hardy-Weinberg Principle:

According to this principle, the frequency of alleles & genotype in a population remains constant from generation to generation, if the population is stable & in genetic equilibrium.

GENE POOL: Total genes & their alleles in a population. Its gene pool remains constant.

This is applicable in case of:

Diploid organisms.

Sexually reproducing organisms.

Large populations: as this helps to ensure that chance alone does not disrupt genetic equilibrium.

Organisms showing random mating.

No mutation or if they occur the rate is same in both directions.

All members of a population survive and have equal reproductive potential.

Human Evolution

Human evolution includes a single genus Homo with a single living species sapiens and a sub species sapiens.

All racial groups Mongoloid, Negroid, Caucasoid, and Australoid are the types of Homo sapiens sapiens.

Primates originated in the Palaeocene epoch of the Tertiary period about 65 million years ago.
The beginning of primate evolution is presumed in Eocene of the tertiary period in evergreen forests.
Fossils of human were obtained from Africa, Asia, and Europe.
From the earliest ape to the modern man, the evolution is a slow and dynamic process.
Dryopithecus got differentiated and the first man like primate was Ramapithecus.
Australopithecus constitute the first ape man.

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