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Principles Of Inheritance And Variation

Question
CBSEENBI12002227
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The incorrect statement with regard to haemophilia is

  • It is a sex - linked disease

  • It is a recessive disease

  • It is dominant disease

  • a single  protein involved in the clotting of blood is affected

Solution

C.

It is dominant disease

Haemophilia is a sex-linked recessive disease.
A single protein that is a part of the cascade of protein is involved in the clotting of blood is affected. The heterozygous female for haemophilia may transmit the disease to sons.

Some More Questions From Principles of Inheritance and Variation Chapter

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Who were the rediscoverers of Mendelism ?

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

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

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

Why is male Drosophila regarded as heterogametic ?

What term is used for the two chromatids resulting from the interchange of segments during crossing over ?

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