NEETZoologyPrinciples of Inheritance and Variation
Match List I with List II. List I List II A. Myotonic dystrophy I. Autosomal recessive B. Cystic fibrosis II. Chromosome 16 C. Colour blindness III. Autosomal dominant D. Alpha-thalassemia IV. X-linked recessive Choose the correct answer from the options given below:
Options
- AA - I, B - III, C - IV, D - II
- BA - III, B - I, C - IV, D - II
- CA - III, B - I, C - II, D - IV
- DA - I, B - III, C - II, D - IV
Correct answer
B. A - III, B - I, C - IV, D - II
Step-by-step solution
Based on the principles of inheritance and variation: Myotonic dystrophy is an example of an autosomal dominant trait. Cystic fibrosis is an autosomal recessive disorder. Colour blindness is an X-linked recessive trait. Alpha-thalassemia is controlled by two closely linked genes HBA1 and HBA2 on chromosome 16 of each parent. Therefore, the correct matching is A - III, B - I, C - IV, D - II. Answer: A - III, B - I, C - IV, D - II