A son of a colourblind father and normal homozygous mother marries to a daughter of normal father an

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4.Principles of Inheritance and Variation

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A son of a colourblind father and normal homozygous mother marries to a daughter of normal father and heterozygous mother than their children will be

All colourblind sons

All colourblind sons and daughters

Some colourblind and some normal daughters

Some normal and some colourblind sons

Solution

(d)The son of colourblind man and homozygous normal mother will be normal and when he marries the daughter of a carrier mother which is expected to be carrier.

The progeny of such a couple will produce $50\%$ colourblind sons and $50\%$ normal sons.

Standard 12

Biology

$A$ : Sickel cell anaemia occurs due to the point mutation.
$R$ : $mRNA$ produced from $Hb(s)$ gene has $GAG$ instead of $GUG$.

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If a man who is colour blind marries a women, who is pure normal for colour vision, the chances of their sons have colour blindness is

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A colour blind man marries the daughter of a colour blind person. Then in their progeny

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(AIIMS-1983)

A person may have one gene for normal haemoglobin and one gene for sickle cell haemoglobin. This heterozygous condition is called

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Mr. Stevan is suffering from haemophilia and cystic fibrosis. His father is hetrozygous for cystic fibrosis. The probability of Stevan's sperm having recessive $X-$linked as well as autosomal allele is

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A son of a colourblind father and normal homozygous mother marries to a daughter of normal father and heterozygous mother than their children will be

Solution

Similar Questions

$A$ : Sickel cell anaemia occurs due to the point mutation. $R$ : $mRNA$ produced from $Hb(s)$ gene has $GAG$ instead of $GUG$.

If a man who is colour blind marries a women, who is pure normal for colour vision, the chances of their sons have colour blindness is

A colour blind man marries the daughter of a colour blind person. Then in their progeny

A person may have one gene for normal haemoglobin and one gene for sickle cell haemoglobin. This heterozygous condition is called

Mr. Stevan is suffering from haemophilia and cystic fibrosis. His father is hetrozygous for cystic fibrosis. The probability of Stevan's sperm having recessive $X-$linked as well as autosomal allele is

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$A$ : Sickel cell anaemia occurs due to the point mutation.
$R$ : $mRNA$ produced from $Hb(s)$ gene has $GAG$ instead of $GUG$.