Totipotency refers to _____.

(a)

capacity to generate genetically identical plants.

(b)

capacity to generate a whole plant from any plant cell / explant.

(c)

capacity to generate hybrid protoplasts.

(d)

recovery of healthy plants from diseased plants.

Micro propagation involves _____.

(a)

vegetative multiplication of plants by using micro-organisms.

(b)

vegetative multiplication of plants by using small explants.

(c)

vegetative multiplication of plants by using microspores.

(d)

Non-vegetative multiplication of plants by using microspores and megaspores.

Match the following :

1) Totipotency	A) Reversion of mature cells into meristerm
2) Dedifferentiation	B) Biochemical and structural changes of cells
3) Explant	C) Properties of living cells develops into entire plant
4) Differentiation	D) Selected plant tissue transferred to culture medium

(a)

1	2	3	4
C	A	D	B

(b)

1	2	3	4
A	C	B	D

(c)

1	2	3	4
B	A	D	C

(d)

1	2	3	4
D	B	C	A

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is ______.

(a)

10 to 30 minutes and 125° C

(b)

15 to 30 minutes and 121° C

(c)

15 to 20 minutes and 125° C

(d)

10 to 20 minutes and 121° C

Which of the following statement is correct

(a)

Agar is not extracted from marine algae such as seaweeds

(b)

Callus undergoes differentiation and produces somatic embryoids.

(c)

Surface sterilization of explants is done by using mercuric bromide

(d)

P^H of the culture medium is 5.0 to 6.0