A boy is colour blind, in his two sisters one is colour blind and one is carrier (normal) . Then who

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4.Principles of Inheritance and Variation

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A boy is colour blind, in his two sisters one is colour blind and one is carrier $(normal)$. Then who is colour blind in his family

Father

His grand father and mother

Mother

His grand father

Solution

(a) When a colourblind man marries a carrier woman then half of his sons will be colourblind and rest half normal and half of his daughters will be colourblind and rest half carriers.

Standard 12

Biology

Colour blindness is a disease usually affecting man but the factor for it is transmitted to the children always by woman. This is because particular factor is located on

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If a colour blind woman marries a normal visioned man, their sons will be

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(AIPMT-2006)

Which of the following is not $X$-linked recessive

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Among symbol $A, B$ and $C, C$ indicates

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

medium

(AIPMT-2005)

A boy is colour blind, in his two sisters one is colour blind and one is carrier $(normal)$. Then who is colour blind in his family

Solution

Similar Questions

Colour blindness is a disease usually affecting man but the factor for it is transmitted to the children always by woman. This is because particular factor is located on

If a colour blind woman marries a normal visioned man, their sons will be

Which of the following is not $X$-linked recessive

Among symbol $A, B$ and $C, C$ indicates

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

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