In Huntington’s disease, the unaffected persons are homozygous for normal allele $h$. The following is erroneous because
In Huntington’s disease, the unaffected persons are homozygous for normal allele $h$. The following is erroneous because
- [AIIMS 2015]
- A
it shows both male and female affected by Huntingtons disease
- B
either person $6$ or $7$ should have the disease, if individual $11$ shows the disease.
- C
at least one of the $2$ children $(8,\,9)$ should have the disease
- D
all of these
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If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
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- [AIIMS 2014]
Haemophilic female marries normal male, the theoretical ratio of their offsprings regarding haemophilia will be
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If a colour blind man marries a woman who is homozygous for normal vision, the probability of their son being colour blind is .........
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A woman with two genes for haemophillia and one gene for colourblindness on one of the $X$ chromosomes marries a normal man. How will the progeny be
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- [AIPMT 1998]
Colour blindness is caused by a single
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