Unit I

Genetic structure of natural populations: Gene pool, Genotype frequency and Allele frequency Hardy-Weinberg law of genetic equilibrium. Assumptions, predictions, applications and significance of Hardy-Weinberg law Conditions when Hardy-Weinberg law might not apply


Unit II

Various destabilizing forces of natural populations: (i) Natural selection (ii) Mutation (iii) Genetic drift (iv) Migration Bottlenecks and founder effects Nature, types and sources of variations in natural populations.


Unit III

Polymorphism as cause of variability in populations: Salient features and types Polymorphism

Origin of Polymorphism Mechanisms to maintain polymorphism within populations Adaptive advantages of polymorphism


Unit IV

Genetics of quantitative traits in populations, Quantitative traits and natural selection, Inbreeding depression, Phenotypic plasticity, Concept of Biodiversity in populations


Suggested Reading Material

1. Dobzhansky, Th., F.J. Ayala, G.L. Stebbines and J.M. Valentine. Evolution. Surjeet Publication, Delhi.

2. Futuyama, D.J. Evolutinary Biology, Suinuaer Associates, INC Publishers, Dunderland.

3. Haiti, D.L. A Primer of Population Genetics. Sinauer Associates, Inc, Massachusetts.

4. Jha, A.P. Genes and Evolution. John Publication, New Delhi.

5. King, M. Species Evolution-The role of chromosomal change. The Cambridge University Press, Cambridge.

6. Dobzhansky, Th. Genetics and Origin of Species. Columbia University Press.