MCQ | GENETIC CONSERVATION AND NEW CROP

1. Which is more suitable for germplasm collection

(a)   Centre of production         (b)   Homelands

(c)   Tropical areas                      (d)   Temperate areas

2. Tropical forests are being lost at the annual rate of

(a)   11 million ha/yr                  (b)   110 million ha/yr

(c)   1 million ha/yr                    (d)   1100 million ha/yr

3. Potato famine of Ireland occured in

(a)   1645                                       (b)   1745

(c)   1845                                       (d)   1854

4. Paraguay Tea is got from

(a)   Leaves of Ilex

(b)   Seeds of Ilex

(c)   Leaves of Paullinia

(d)   Paste of crushed kernels of Paullinia

5. Vavilov’s centres of origin of crop plants are located in

[CPMT 1985]

(a)   Tropical plains

(b)   Mountains of tropical areas

(c)   Mountains of temperate areas

(d)   Both (b) and (c)

6. Exchange of germplasm is carried mostly through shoot tips because it is                                                           [APMEE 1988]

(a)   Cheap                                     (b)   Small and handy

(c)   Virus free                              (d)   Genetically stable

7. Offsite collections are part of [MP PMT 1989]

(a)   Ex-situ conservation          (b)   In situ conservation

(c)   Both (a) and (b)                  (d)   Neither (a) nor (b)

8. National Botanical Research Centre is located at

[CPMT 1995; APMEE 1996; DPMT 1999]

(a)   Lucknow                               (b)   Calcutta

(c)   Delhi                                       (d)   Mumbai

9. Which is correct about centre of origin of a crop plant

[CBSE PMT 2001]

(a)   More frequency of dominant genes

(b)   More diversity in improved variety

(c)   More favourable climatic condition

(d)   None of the above

4. (a) Ilex paraguriensis is source of paraguay tea. It’s leaves dried fire and crushed.
5. (c) Shoot tip culture maintains virus free plant. It is used for international exchange of germplasm is vegetatively multiplied cultivars, e.g., Banana, Potato.
6. (a) Ex situ conservation includes offsite collections and gene banks.
7. (a) The centres of origin of plants are more appropriately called the centres of diversity. These are the areas of maximum diversity of these species.

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