Question

Why is a man unable to pass on a X-linked trait to his son ?

Solution

A man has the sex chromosomes XY which makes him a hetrogametic. Fathers pass the X chromosome to their daughter and Y chromosome to his son. Thus the X-linked trait is not passed to the son because the son recieves the gamete having Y chromosome.

Some More Questions From Principles of Inheritance and Variation Chapter

Name the plant that shows incomplete dominance in respect of the colour of its flower.

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

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Principles Of Inheritance And Variation

Why is a man unable to pass on a X-linked trait to his son ?

Some More Questions From Principles of Inheritance and Variation Chapter

Name the plant that shows incomplete dominance in respect of the colour of its flower.

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.

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