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Principles Of Inheritance And Variation

Question

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One of the following is sex-influenced character

Appearance of beard

Baldness in male

Docile behaviour of female

Low BMR in female

Solution

B.

Baldness in male

D.

Low BMR in female

Inheritance of pattern baldness in man is an example of sex-influenced trait which is dominant in males and recessive in females.

Some More Questions From Principles of Inheritance and Variation Chapter

Name one trait that does not blend.

Give one example of genetic trait for each of the following in humans : (i) Lethality (ii) Multiple allelism.

What for symbols AA and Aa stand ?

Mention the phenomenon of pleiotropy by giving an example.

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 ?

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