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NEET 2025
Exam
NEET
Year
2025
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2025 · Zoology · Principles of Inheritance and Variation

With the help of given pedigree, find out the probability for the...

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 F3F_3 generation. With the help of given pedigree, find out the probability for the birth of a child having no disease and being a

Options

  1. A1/4
  2. B1/2
  3. C1/8
  4. Dzero

Correct answer

A. 1/4

Step-by-step solution

As in the F1F_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 (XCX)\left(X^C X\right) and male (XCY)\left(X^C Y\right) With the help of given pedigree, find out the probability for the birth of a child having no disease and being a
Out of 4 child only one is carrier i.e. 14\frac{1}{4}.
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