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Principles Of Inheritance And Variation

Question
CBSEENBI12003195
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A haemophilic woman marries a normal man then

  • all the children will be normal

  • all the sons will be haemophilic

  • all the girls will be haemophilic

  • half girls will be haemophilic

Solution

B.

all the sons will be haemophilic

Haemophilia is x linked recessive trait (where females are the carrier) in which a person lacks certain clotting factors which don't let the blood to clot properly. 

Some More Questions From Principles of Inheritance and Variation Chapter

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

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 ?

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 ?

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