Match List – I with List – II.
| List – I (Organism) | List – II (Sex chromosomes) |
| (A) Male grasshopper | (I) XY |
| (B) Male Drosophila | (II) ZX |
| (C) Female bird | (III) XX |
| (D) Female grasshopper | (IV) XO |
| (V) ZW |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(IV), (B)-(I), (C)-(V), (D)-(III)
(A) Male grasshopper — this matches (IV) XO. The male has only one X chromosome.
(B) Male Drosophila — this matches (I) XY. The male is heterogametic with XY.
(C) Female bird — this matches (V) ZW. In birds the female is heterogametic.
(D) Female grasshopper — this matches (III) XX. The female has two X chromosomes.
(II) ZX matches none.