Definition of Ex-Situ Conservation
Ex-situ conservation means-
- Organized herd outside breeding tract eg. Research station, Zoo etc.
- Cryopreservation of sperms, oocytes, embryos, somatic cells, stem cells etc.
- Storage of DNA & live tissue
- All the above — Correct Answer
Explanation:
Correct Answer: All the above
Ex-situ conservation (off-site conservation) means preserving animals or their genetic material away from their natural habitat. It encompasses all three options listed.
Ex-Situ Conservation — Methods
- In-vivo (live animal) method: Conservation of live animals away from main breeding tracts — e.g., organised herds at research stations, zoos, breeding parks
- In-vitro (cell/genetic material) method: Cryopreservation of sperms, oocytes, embryos, stem cells, somatic cells; storage of DNA
Conservation Methods — Comparison
| Type | Method | Examples |
|---|---|---|
| In-situ | In native habitat (best method) | Institutional herds, Farmers herds, Gaushalas, Dairy cooperatives, NGOs |
| Ex-situ (in-vivo) | Live animals away from habitat | Research stations, Zoo, Breeding parks |
| Ex-situ (in-vitro) | Cells / genetic material | Cryopreservation of sperm, oocytes, embryos, DNA storage |
Why Other Options Are Wrong
- Each individual option is correct on its own — together they all form ex-situ conservation, so "All the above" is the complete answer.
📚 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.
