Agricultural Biotechnology MCQs

Question 1

Peptidyl transferase is

Accepted Answer

Ribozyme

Answer

Abzyme

Answer

Protein

Answer

All of the above

Question 2

Which of the following vector can be used for cloning bigger DNA fragments?

Accepted Answer

YACs

Answer

Cosmids

Answer

Plasmids

Answer

E.coli

Question 3

The glycosidic bond present in starch is

Accepted Answer

Both A and C

Answer

α 1, 4

Answer

β 1, 4

Answer

α 1, 6

Question 4

The pigment prevents from photoinhibition is

Accepted Answer

Xanthophyll

Answer

Chlorophyll

Answer

Carotenoids

Answer

Phycobilins

Question 5

Which of the following methods would give you the most precise and accurate information about where and when a given gene is expressed?

Accepted Answer

Reporter gene fusion including introns

Answer

In situ hybridization

Answer

Ex situ hybridization

Answer

Protein microarray

Question 6

The amino acid which is precursor of phytohormone is

Accepted Answer

Tryptophan

Answer

Lysine

Answer

Proline

Answer

Threonine

Question 7

The host plant genes in nodule formation is

Accepted Answer

Nodulin gene (Nod gene)

Answer

Nodulation genes (nod genes)

Answer

Nodulin gene (nod gene)

Answer

Nodulation genes (Nod genes)

Question 8

Why have transgenic proteins present in crops often been tested in the presence of stomach acid before the plants were released?

Accepted Answer

To see whether the protein will persist long enough to cause an allergic reaction

Answer

To see whether the protein will be mutated into a more harmful protein (e.g. prions)

Answer

To see whether the protein can be digested to provide substantially equivalent nutrients

Answer

To see whether the protein will be digestible by an average consumer

Question 9

The central atom present in chlorophyll is

Accepted Answer

Mg

Answer

Cu

Answer

Mn

Answer

Zn