Principle of Inheritance and VariationMediumBloom L3
Question
Match Column I with Column II
| Column I | Column II |
| A. Turner syndrome | 1. Trisomy |
| B. Linkage | 2. AA + XO |
| C. Y-chromosome | 3. Morgan |
| D. Down's syndrome | 4. Testis determining factor |
Options
A.A→2; B→1; C→4; D→3
B.A→4; B→1; C→2; D→3
C.A→4; B→2; C→1; D→3
D.A→2; B→3; C→4; D→1
Solution
Sol.(d) [Key Concept: Genetics — Concepts Matching] Correct matching: A (Turner syndrome) → 2 (AA + XO — Turner's is 44 autosomes + XO, total 45 chromosomes, monosomy X); B (Linkage) → 3 (Morgan — T.H. Morgan discovered and studied gene linkage in Drosophila); C (Y-chromosome) → 4 (Testis determining factor — Y chromosome carries SRY gene/TDF that determines male sex); D (Down's syndrome) → 1 (Trisomy — Down's is trisomy 21). Answer: A→2, B→3, C→4, D→1 = option (d).
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