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Principles Of Inheritance And Variation

Question

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Pick out the correct statement.

I. Haemophilia is a sex-linked recessive disease
II. Down's syndrn=me is due to aneuploidy
III. Phenylketonuria is an autosomal recessive gene disorderIv. Sickle cell anaemia is an X-linked recessive gene disorder

II and IV are correct

I, III and IV are correct

I, II and III are correct

I and IV are correct

Solution

C.

I, II and III are correct

Sickle cell anaemia is an autosomal recessive disorder

Some More Questions From Principles of Inheritance and Variation Chapter

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Mention the phenomenon of pleiotropy by giving an example.

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Write the genotypes of man with blood group A.

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Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

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