Agricultural Biotechnology MCQs

Question 1

Glucouronic acid is

Accepted Answer

Sugar acid

Answer

Amino sugar

Answer

Sugar alcohol

Answer

None of the above

Question 2

The percentage of absorbed water gets transpired in plants is

Accepted Answer

98%

Answer

60%

Answer

70%

Answer

88%

Question 3

Which of the following is true of glyphosate?

Accepted Answer

It can be manufactured without a license from the patent holder

Answer

It has an animal DL 50 of 0.4 g/kg

Answer

It is more selective than 2,4-D

Answer

None of these

Question 4

How was luciferase (LUC) with an artificial stop codon used as a control in the experiments involving altered tRNA?

Accepted Answer

LUC expression demonstrated that Lys was being substituted for the stop codon by the altered tRNA.

Answer

Diminished LUC expression demonstrated that the altered tRNA could properly recognize stop codons.

Answer

LUC expression demonstrated that the gene was being induced by Lys.

Answer

The artificial LUC is an example of a synthetic gene.

Question 5

Important constituent of Biogas is

Accepted Answer

CH4

Answer

Ethane

Answer

Carbon monoxide

Answer

NH3

Question 6

The amino acid proline belongs to

Accepted Answer

Glutamate family

Answer

Serine family

Answer

Histidine family

Answer

Pyruvate family

Question 7

The sterilant used for explants preparation is

Accepted Answer

All of the above

Answer

HgCl2

Answer

NaClO

Answer

Ca(ClO)2

Question 8

The principle behind uncoupling is that

Accepted Answer

Uncoupling agents uncouple oxidation from phosphorylation

Answer

Uncoupling agents uncouple phosphorylation from oxidation

Answer

Uncoupling agents block the process of phosphorylation

Answer

None of the above

Question 9

Micro propagation can be done by

Accepted Answer

All of the above

Answer

Through shoot bud proliferation

Answer

Through adventitious buds

Answer

Meristem tip culture