Question

Modern Ex Situ conservation includes
(i) cryopreservation techniques
(ii) in vitro-fertilisation
(ii) plants can be propagated using tissue
culture methods
(a) Only (i) (b) Only (iii)
(c) (ii) and (iii) (d) All of these

Answer 1

Answer:

your correct answer option is (c)

Answer 2

Answer:

(d) All of these. Ex-situ approaches refers to the conservation of those organisms, where the number of species becomes extinct or declines heavily in number in their habitat. for example, modern Ex-situ conservation includes cryopreservation, tissue culture and in vitro fertilisation etc.

Explanation:

1. In the cryopreservation technique, we make use of very low temperatures to preserve structurally intact living cells and tissues We store the cells and tissues below the freezing point at 196 degrees celsius . This gives a high rate of survival of cells.
2. IVF is used to obtain offspring of endangered animals and sterile animals. Its full form is In Vitro fertilization.
3. Tissue culture is a method of producing new plant tissue from old plant tissue in a Petri plate, in a well regulated sterile surrounding which can later grow up to become a new plant organism.
4. By using this technique we can use it to maintain high-quality plant material and produce many plants.