NEET · Biology · STD 12 - 4. principal of inheritance and variation
With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in \(F_3\) generation.
- A 1/4
- B 1/2
- C 1/8
- D zero
Answer & Solution
Correct Answer
(A) 1/4
Step-by-step Solution
Detailed explanation
As in the \(F_1\) generation the carrier female and non-affected (normal, not carrier) had affected male child that means the genetic disorder is sex-linked recessive.
The consanguineous mating between female \(\left(X^C X\right)\) and male \(\left(X^C Y\right)\)
Out of 4 child only one is carrier i.e. \(\frac{1}{4}\).
The consanguineous mating between female \(\left(X^C X\right)\) and male \(\left(X^C Y\right)\)
Out of 4 child only one is carrier i.e. \(\frac{1}{4}\).
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