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9
MCQ (Single Correct Answer)

Fungicides and antibiotics are chemicals that

A

enhance yield and disease resistance

B

kill pathogenic fungi and bacteria, respectively

C

kill all pathogenic microbes

D

kill pathogenic bacteria and fungi respectively

10
MCQ (Single Correct Answer)

Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed

A

recombinant DNA technology

B

transgenic mechanism

C

mutation breeding

D

gene therapy

11
MCQ (Single Correct Answer)

The scientific process by which crop plants are enriched with certain desirable nutrients is called

A

crop protection

B

breeding

C

biofortification

D

bioremediation

12
MCQ (Single Correct Answer)

The term 'Totipotency' refers to the capacity of a

A

cell to generate whole plant

B

bud to generate whole plant

C

seed to germinate

D

cell to enlarge in size

13
MCQ (Single Correct Answer)

Given below are a few statements regarding somatic hybridisation. Choose the correct statements.

I. Protoplasts of different cells of the same plant are fused .

II. Protoplasts from cells of different species can be fused.

III. Treatment of cells with cellulase and pectinase is mandatory.

IV. The hybrid protoplast contains characters of only one parental protoplast.

A

I and II

B

I and II

C

I and IV

D

IV and III