Given below is a highly simplified representation of human sex chromosomes from a karyotype. genes a

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4.Principles of Inheritance and Variation

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Given below is a highly simplified representation of the human sex chromosomes from a karyotype.

The genes $a$ and $b$ could be of

colour blindness and body height

attached ear lobe and Rhesus blood group

haemophilia and red-green colour blindness

phenylketonuria and haemophilia

(AIIMS-2006)

Solution

Genes $a$ and $b$ lie very close to each other. So, they are representing linked genes. e.g. genes of haemophilia and colour blindness show sex linked inheritance.

Standard 12

Biology

Sickle cell-anaemia disorder arises due to

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Which one of the following symbols and its representation, used in human pedigree analysis is correct ?

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(AIPMT-2010)

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

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(AIPMT-2004)

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

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In Huntington’s disease, the unaffected persons are homozygous for normal allele $h$. The following is erroneous because

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(AIIMS-2015)

Given below is a highly simplified representation of the human sex chromosomes from a karyotype. The genes $a$ and $b$ could be of

Solution

Similar Questions

Sickle cell-anaemia disorder arises due to

Which one of the following symbols and its representation, used in human pedigree analysis is correct ?

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

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

In Huntington’s disease, the unaffected persons are homozygous for normal allele $h$. The following is erroneous because

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Given below is a highly simplified representation of the human sex chromosomes from a karyotype.

The genes $a$ and $b$ could be of