Agricultural Biotechnology MCQs

Question 1

Hairy root is caused by

Accepted Answer

Agrobacterium rhizogenes

Answer

Agrobacterium tumefaciens

Answer

Agrobacterium rubi

Answer

Meladogyne species

Question 2

PCR was developed by

Accepted Answer

Karry Mulis

Answer

Karl Ereky

Answer

Southern

Answer

Alec Jaffery

Question 3

A C-terminal KDEL motif will most often ensure

Accepted Answer

ER-retention of the protein

Answer

The protein to be folded by HSC70

Answer

The protein to be degraded by the polyubiquitine pathway

Answer

Secretion of the protein

Question 4

The technique by which virus detection can be made both in plants and animals is known as

Accepted Answer

Enzyme linked immunoabsorbent assay (ELISA)

Answer

Electrophoresis

Answer

Electron microscopy

Answer

Immunofluorescence

Question 5

The criteria for essentiality of nutrients was proposed by

Accepted Answer

Arnon and Stout

Answer

Mitchel

Answer

Boyer

Answer

Leibig

Question 6

DNA replication is

Accepted Answer

Semi-conservative

Answer

Conservative

Answer

None of these

Answer

Both of the above

Question 7

Biosensers are used as

Accepted Answer

Any of the above

Answer

Purified enzymes

Answer

Antibodies

Answer

Whole microbial cells

Question 8

Star activity of restriction enzyme means

Accepted Answer

Due to change in ionic conc. or other components it cuts at more sites generating more no. of fragments

Answer

It cuts the restriction site more efficiently

Answer

It cuts at only one site

Answer

It does not cut at any site

Question 9

What are the components of PCR reaction?

Accepted Answer

Buffer, Taq polymerase dNTPs, primer and template

Answer

Buffer, dNTPs, primer and template

Answer

Buffer, Taq polymerase, primer and template

Answer

Buffer, Taq polymerase, dNTPs and template