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Principles Of Inheritance And Variation

Question
CBSEENBI12047452

Match the items in column I with those in column II and choose the correct answer.

Column I Column II
A. Klinefelter syndrome 1. Mutation in autosomal gene
B. Thalassaemia 2. Mutation in sex chromosome linked gene
C. Down syndrome 3. Trisomy of autosome
D. Colour blindness 4. Trisomy of sex chromosme

  • A- 1; B- 2; C- 3; D- 4

  • A- 2; B- 3; C- 4; D- 1

  • A- 3; B- 4; C- 1; D- 2

  • A- 4; B- 1; C- 3; D- 2

Solution

D.

A- 4; B- 1; C- 3; D- 2

Column I Column II
A. Klinefelter's syndrome 4. Trisomy of sex chromosme (44 + XXY)
B. Thalassaemia 1. Mutation in autosomal gene
C. Down's syndrome 3. Trisomy of autosome (extra 21 chromosme)
D. Colour blindness 2. Mutation in sex chromosome linked gene