(D) Haemophilia is a sex-linked recessive disorder.It is caused by a mutation in the genes located on the $X$ chromosome.Since it is $X$-linked,it is

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(D) Haemophilia is a sex-linked recessive disorder.It is caused by a mutation in the genes located on the $X$ chromosome.Since it is $X$-linked,it is more commonly observed in males because they have only one $X$ chromosome,whereas females have two $X$ chromosomes and can be carriers without showing symptoms.

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

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Haemophilia is a type of genetic disorder that is:

A
Autosomal
B
$Y$-linked
C
$Z$-linked
D
$X$-linked

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Principles of Inheritance and Variation

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Pedigree Analysis and Mendelian disorders

Colour blindness in man is

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In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased? (In $ \%$ )

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Why are thalassemia and haemophilia categorised as Mendelian disorders? Write the symptoms of these diseases. Explain their pattern of inheritance in humans.

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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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$A$: The possibility of a female becoming a haemophilic is extremely rare.
$R$: Mother of such a female has to be a carrier and the father should be haemophilic.

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Haemophilia is a type of genetic disorder that is:

Similar Questions

Colour blindness in man is

In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased? (In $ \%$ )

Why are thalassemia and haemophilia categorised as Mendelian disorders? Write the symptoms of these diseases. Explain their pattern of inheritance in humans.

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

$A$: The possibility of a female becoming a haemophilic is extremely rare.$R$: Mother of such a female has to be a carrier and the father should be haemophilic.

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

$A$: The possibility of a female becoming a haemophilic is extremely rare.
$R$: Mother of such a female has to be a carrier and the father should be haemophilic.