Given below is a pedigree chart showing inheritance of a certain sex- linked trait in humans. trait

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4.Principles of Inheritance and Variation

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Given below is a pedigree chart showing the inheritance of a certain sex- linked trait in humans.

The trait traced in the above pedigree chart is

Dominant $X$-linked

Recessive $X$-linked

Dominant $Y$-linked

Recessive $Y$-linked

Solution

The disease in the given pedigree chart is $X$-linked dominant because, it is inherited by female child from her father and none of the male child is affected ($X$-linked). As disease expressed in female inspite of two $XX$-chromosomes, it will be dominant.

Standard 12

Biology

The most important example of point mutation is found in a disease called

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Study the given pedigree chart and select the correct option of the given question.

$(1)$ Is the trait recessive of dominant ?

$(2)$ is the trait sex linked or autosomal ?

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Pattern baldness, moustaches and beard in human males are examples of

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(AIPMT-2003)

Match the following – (w.r.t. Pedigree analysis)

Column $-I$ Column $-II$

$a.$ Solid symbol $(i)$ Carrier of sex linked trait

$b.$ Horizontal line between symbols $(ii)$ Offspring

$c.$ Horizontal line above the symbols $(iii)$ Trait to be studied

$d.$ Dot in centre $(iv)$ Parents

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Phenylketonuria is a genetic disorder due to a defect in metabolism of the following.

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Column $-I$	Column $-II$
$a.$ Solid symbol	$(i)$ Carrier of sex linked trait
$b.$ Horizontal line between symbols	$(ii)$ Offspring
$c.$ Horizontal line above the symbols	$(iii)$ Trait to be studied
$d.$ Dot in centre	$(iv)$ Parents

Given below is a pedigree chart showing the inheritance of a certain sex- linked trait in humans. The trait traced in the above pedigree chart is

Solution

Similar Questions

The most important example of point mutation is found in a disease called

Study the given pedigree chart and select the correct option of the given question. $(1)$ Is the trait recessive of dominant ? $(2)$ is the trait sex linked or autosomal ?

Pattern baldness, moustaches and beard in human males are examples of

Match the following – (w.r.t. Pedigree analysis) Column $-I$ Column $-II$ $a.$ Solid symbol $(i)$ Carrier of sex linked trait $b.$ Horizontal line between symbols $(ii)$ Offspring $c.$ Horizontal line above the symbols $(iii)$ Trait to be studied $d.$ Dot in centre $(iv)$ Parents

Phenylketonuria is a genetic disorder due to a defect in metabolism of the following.

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Given below is a pedigree chart showing the inheritance of a certain sex- linked trait in humans.

The trait traced in the above pedigree chart is

Study the given pedigree chart and select the correct option of the given question.

$(1)$ Is the trait recessive of dominant ?

$(2)$ is the trait sex linked or autosomal ?

Match the following – (w.r.t. Pedigree analysis)

Column $-I$ Column $-II$

$a.$ Solid symbol $(i)$ Carrier of sex linked trait

$b.$ Horizontal line between symbols $(ii)$ Offspring

$c.$ Horizontal line above the symbols $(iii)$ Trait to be studied

$d.$ Dot in centre $(iv)$ Parents