(B) Color blindness in humans is a sex-linked recessive disorder.It is caused by a mutation in certain genes present on the $X$ chromosome.Because mal

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(B) Color blindness in humans is a sex-linked recessive disorder.It is caused by a mutation in certain genes present on the $X$ chromosome.Because males have only one $X$ chromosome $(XY)$,they are more frequently affected than females,who have two $X$ chromosomes $(XX)$ and can be carriers.Therefore,it is a classic example of sex-linked inheritance.

Class 12 Biology Principles of Inheritance and Variation Pedigree Analysis and Mendelian disorders

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In humans,color blindness is caused by:

A
Vitamin $A$ deficiency
B
Sex-linked inheritance
C
Hyperactivity of the adrenal gland
D
Excessive alcohol consumption

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Class 12

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Chapter

Principles of Inheritance and Variation

Subtopic

Pedigree Analysis and Mendelian disorders

If a color-blind woman marries a man with normal vision,their sons will be .....

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Which of the following genotypes results in hemophilia in females and males respectively?
$\quad\quad$ Female $\quad\quad$ Male

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$A$ woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be

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Which of the following abnormalities is due to an autosomal dominant mutation?

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$A$: The heterozygotic female for haemophilia may transmit the disease to sons.
$R$: Such traits show criss-cross inheritance.

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In humans,color blindness is caused by:

Similar Questions

If a color-blind woman marries a man with normal vision,their sons will be .....

Which of the following genotypes results in hemophilia in females and males respectively?$\quad\quad$ Female $\quad\quad$ Male

$A$ woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be

Which of the following abnormalities is due to an autosomal dominant mutation?

$A$: The heterozygotic female for haemophilia may transmit the disease to sons.$R$: Such traits show criss-cross inheritance.

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Which of the following genotypes results in hemophilia in females and males respectively?
$\quad\quad$ Female $\quad\quad$ Male

$A$: The heterozygotic female for haemophilia may transmit the disease to sons.
$R$: Such traits show criss-cross inheritance.