AIPMT 2005 | Principles of Inheritance and Variation Question 118 | Biology

A woman with normal vision, but whose father was colour bind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. This boy -

May be colour blind or may be normal vision

Must have normal colour vision

Must be colour blind

Will be partially colour blind since he is heterozygous for the colour blind mutant allele.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Which of the following is not a hereditary disease ?

Cretinism

Cystic fibrosis

Haemophilia

Thalasasemia

AIPMT 2005

MCQ (Single Correct Answer)

-1

A women with 47 chromosomes due to three copies of chromosome 21 is characterized by

triploidy

Down’s syndrome

superfemaleness

Turner’s syndrome

AIPMT 2004

MCQ (Single Correct Answer)

-1

In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt

75% will be tall with red fruit

25% will be tall with red fruit

50% will be tall with red fruit

All the offspring will be tall with red fruit

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