Incorrect Statement Regarding the Yak
Which of the following statement is not true about Yak-
- Yak (Bos grunniens) is locally known as banchour for wild & chour-gau for domestic variety.
- Chromosome number of Yak is 58 — Correct Answer
- Domestic yak makes grunting sounds, in contrast to wild yak, so he is also known as "grunting ox"
- Yak herdsmen are known as Bropkas
- NRCY is situated at Dirang (Arunachal Pradesh)
Explanation:
Correct Answer (NOT TRUE): Chromosome number of Yak is 58
This statement is FALSE. The Yak (Bos grunniens) has a diploid chromosome number of 2N = 60 (same as cattle and goat), not 58. The species with 2N = 58 is Mithun (Gayal) (Bos frontalis).
All True Facts About Yak
- Scientific name: Bos grunniens
- Local names: Wild = banchour; Domestic = chour-gau
- Chromosome number: 2N = 60 (NOT 58)
- Grunting ox: Domestic yak grunts (wild yak does not) → hence called 'grunting ox'
- Yak herdsmen: Known as Bropkas
- NRCY location: Dirang, Arunachal Pradesh
- Altitude range: 3,000–4,500 m above mean sea level
- Humped? No — Yak is humpless
Chromosome Numbers — Similar Species
| Animal | 2N Chromosomes |
|---|---|
| Cattle (zebu/exotic), Goat, Yak | 60 |
| Mithun (Gayal) | 58 |
| Sheep | 54 |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 5 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
