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How many genotypes of sickle cell anaemia are possible in a population?(a) One(b) Two(c) Three(d) FourI had been asked this question in semester exam.My question is based upon Inheritance and Variation Principles topic in section Principles of Inheritance and Variation of Biology – Class 12

Answer»

The correct choice is (c) THREE

Best EXPLANATION: Three TYPES of genotypes of sickle CELL anaemia are possible in a population. These are:

i. Hb^A Hb^A: Normal individuals

ii. Hb^A Hb^S: Normal individuals but act as a CARRIER in spreading the disease

iii. Hb^S Hb^S: Diseased individuals and they die before attaining maturity



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