Unit-VII Genetics and Evolution Chapter-5: Principles of Inheritance and Variation Heredity and variation:

Unit-VII Genetics and Evolution Chapter-5: Principles of Inheritance and Variation Heredity and variation:

 Mendelian inheritance; deviations from Mendelism – incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy; elementary idea of polygenic inheritance; chromosome theory of inheritance; chromosomes and genes; Sex determination - in humans, birds and honey bee; linkage and crossing over; sex linked inheritance - haemophilia, colour blindness; Mendelian disorders in humans - thalassemia; chromosomal disorders in humans; Down's syndrome, Turner's and Klinefelter's syndromes.