Incorrectly Matched Chromosomal Abnormality
Which of the following pairs is NOT correctly matched regarding chromosomal abnormalities?
- Turner syndrome: 44 + XO
- Klinefelter syndrome: 44 + XXY
- Down syndrome: Trisomy 21
- Cat cry syndrome: Trisomy 5 — Correct Answer
Explanation:
Correct Answer: Cat cry syndrome: Trisomy 5 (INCORRECT)
Cat cry syndrome (Cri-du-chat) is caused by terminal deletion of the short arm of the 5th chromosome, NOT trisomy of chromosome 5.
Chromosomal Abnormalities
| Condition | Chromosomal Basis |
|---|---|
| Patau syndrome | Trisomy of 13th chromosome |
| Edward syndrome | Trisomy of 18th chromosome |
| Down syndrome | Trisomy of 21st chromosome |
| Cat cry syndrome (Cri-du-chat) | Terminal deletion of short arm of 5th chromosome |
| Klinefelter's syndrome | 47 (44 + XXY) |
| Turner syndrome | 45 (44 + XO) |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
