12th Bio Botany one marks - Lesson 5 - Online Test | Plant Tissue Culture

#1. Totipotency refers to

capacity to generate genetically identical plants

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

capacity to generate hybrid protoplasts

recovery of healthy plants from diseased plants

#2. Micro propagation involves

vegetative multiplication of plants by using micro-organisms

vegetative multiplication of plants by using small explants

vegetative multiplication of plants by using microspores

Non-vegetative multiplication of plants by using microspores and megaspores

#3. The time duration for sterilization process by using autoclave is _ minutes and the temperature is _

10 to 30 minutes and 125° C

15 to 30 minutes and 121° C

15 to 20 minutes and 125° C

10 to 20 minutes and 121° C

#4. Which of the following statement is correct?

Agar is not extracted from marine algae such as seaweeds

Callus undergoes differentiation and produces somatic embryoids

Surface sterilization of explants is done by using mercuric bromide

PH of the culture medium is 5.0 to 6.0

#5. Select the incorrect statement from given statements:

A tonic used for cardiac arrest is obtained from Digitalis purpuria

Medicine used to treat Rheumatic pain is extracted from Capsicum annum

An anti-malarial drug is isolated from Cinchona officinalis

Anti-carcinogenic property is not seen in Catharanthus roseus.

All the above are correct

#6. Vims free plants are developed from

Organ culture

Meristem culture

Protoplast culture

Cell suspension culture

#7. The prevention of large scale loss of biological integrity

Biopatent

Bioethics

Biosafety

Biofuel

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

at very low temperature by using ether

at very high temperature by using liquid nitrogen

at very low temperature of-196 by using liquid nitrogen

at very low temperature by using liquid nitrogen

#9. Solidifying agent used in plant tissue culture is

Nicotinic acid

Cobaltous chloride

EDTA

Agar

#10. The production of secondary metabolites require the use of ___________

Protoplast culture

Organ culture

Cell suspension culture

Virus free germ culture

M	T	W	T	F	S	S
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

12th Bio Botany one marks – Lesson 5 – Online Test | Plant Tissue Culture