MCQs of Biology – Colour Blindness

Which one of the of following is a genetically transmitted character?

Wilson detected the colour blindness disease in:

Colour blindness in man is:

Colour blindness is caused by a single:

Colour blindness is due to:

Gene for colour blindness is located on:

One of the genes present exclusive on the X- chromosome in humans is concerned with:

Inheritance of blue blindness is:

Colourblindness results from:

Persons who are colour blind cannot distinguish:

Deuteranopia is a disease when there is no perception of _______ colour.

Colour blindness is found more in males than because:

Carriers of colour blindness are:

Colour blindness is inherited in:

A colour blind father may have a blind grandson through her. This is indicates that the gene responsible for colour blindness is located on:

If a colour blind man marries the daughter having normal vision of colour blind man, then in their progeny:

A normal woman, whose father was colour blind is married to a normal man. The sons would be:

A girl of normal vision whose father was colour blind marries a man of normal vision whose father was also colour blind. Their sons would be ( of total number of sons).

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

Daughter would be colour blind only if:

If a colour- blind woman marries a normal man their children will be:

Daughter suffers from colour blindness and son is normal. It is possible if:

A woman with no history of colour blindness marries a colour- blind man. What are the risks for this couple of having a son or daughter who is colour blind?

If a man who is colour blind marries a woman who is pure normal for colour vision, the chance of their sons having colour blindness is:

If husband and wife have normal vision, but fathers of both were colour blind; probability of their first daughter to be colour blind is:

Ahmed is coloring blind. What is the chance of his son inheriting colour blindness from him?

A colour – blind man marries a daughter of normal woman and colour- blind man. The ratio of carrier daughter, colour- blind daughters, normal sons and colour – blind sons born to this couple will be:

If both parents of a male child are normal, what are the chance of the child being colour blind?

A colour blind girl is rare because she will be born only when:

Red green colour blindness in humans is governed by sex linked recessive gene. A normal woman whose father was colouring blind marries a colour- blind man. what proportion of their daughters is expected to be coloruing blind?

A colour- blind daughter is born when:

A sex- linked recessive gene ‘e’ produces red- green colour blindness in human beings. A normal woman whose father was colour blind marries a color blind man. Of all the girls born to these parents what percentage is expected to be colour blind?

Al is coloring blind. What is the chance , his son will inherit colour blindness from him?

A colour – blind man has a normal brother and colour – blind sister. The phenotypes of parents are:

Which genotype will indicate colour blindness in male?

What are all the chances of colour- blind daughters and sons beings born in a marriage of normal man marrying a normal woman whose father was colour blind?

If a man and a woman bothhaving colour blind father marry, the percentage probability of their first daughter to be colour blind is:

If a normal Woman marries a colour blind man:

A colour blind child have both normal parents . Child is:

If a colour blind man marries a woman who is normal but carries this trait, the progeny would be:

If a colour