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NEET 2013
Exam
NEET
Year
2013
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2013 · Zoology · Principles of Inheritance and Variation

If both parents are carriers for thalassemia, which is an autosomal...

If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?

Options

  1. ANo chance
  2. B50%50 \%
  3. C25%25 \%
  4. D100%100 \%

Correct answer

C. 25%25 \%

Step-by-step solution

Thalassemia is the disorder due to reduced synthesis of either the α\alpha or β\beta-chains, likewise designated as α\alpha or β\beta - thalassemias. When this autosomal mutant gene is present in double dose. The disease is severe called as thalassemia major.
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