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

Select the incorrect statement from given statement.

(a)

A tonic used for cardiac arrest is obtained from Digitalis purpuria

(b)

Medicine used to treat Rheumatic pain is extracted from Capsicum annum

(c)

An anti malarial drug is isolated from Cinchona officinalis.

(d)

Anti-cancinogenic property is not seen in Catharanthus roseus.

Virus free plants are developed from _____.

(a)

Organ culture

(b)

Meristem culture

(c)

Protoplast culture

(d)

Cell suspension culture

The prevention of large scale loss of biological interity ____.

(a)

Biopatent

(b)

Bioethics

(c)

Biosafety

(d)

Biofuel

Cryopreservation means it is a process to preserve plant cells, tissues or organs _____.

(a)

at very low temperature by using ether.

(b)

at very high temperature by using liquid nitrogen

(c)

at very low temperature of -196°C by using liquid nitrogen

(d)

at very low temperature by using liquid nitrogen

Solidifying agent used in plant tissue culture is _____.

(a)

Nicotinic acid

(b)

Cobaltous chloride

(c)

EDTA

(d)

Agar