Agricultural Biotechnology MCQs

Question 1

Biotechnology utilizes new organisms developed from present organisms utilizing

Accepted Answer

Both A and B

Answer

Mutation

Answer

Recombinant DNA Technology

Answer

None of these

Question 2

When pyrimidine is substituted by purines and vice versa, this type of mutation is known as

Accepted Answer

Transversion

Answer

Transition

Answer

Non sense mutation

Answer

Mis sense mutation

Question 3

Pasteur effect means

Accepted Answer

The yeast consumes more glucose in anaerobic condition

Answer

The yeast consumes more glucose in aerobic condition

Answer

The yeast consumes less glucose in anaerobic condition

Answer

None of the above

Question 4

Which of the following statements concerning the RNA/DNA hybrid oligonucleotides is incorrect?

Accepted Answer

They hybrid molecule must be introduced into the cell using a binary vector

Answer

They may be synthesized to contain a mutation that will be incorporated into the host genome

Answer

They provide a mechanism for targeted alteration of the plant genome

Answer

They are incorporated using a mechanism that involves host DNA repair machinery

Question 5

Ribosomes are synthesized in

Accepted Answer

Nucleolus

Answer

Nucleus

Answer

Cytoplasm

Answer

Chloroplast

Question 6

The membrane surrounding the bacteroids is

Accepted Answer

Peribacteroid membrane

Answer

Bacteroid membrane

Answer

Plasma membrane

Answer

Bacterial membrane

Question 7

The root pressure is measured by

Accepted Answer

Manometer

Answer

Potometer

Answer

Porometer

Answer

Barometer

Question 8

Polynucleotide kinase

Accepted Answer

Adds phosphate group at 5'OH

Answer

Removes the phosphate group at 5' end

Answer

Ligates blunt end

Answer

Adds several nucleotides at 3'OH

Question 9

Cytoplasmic hybrids are known as

Accepted Answer

Cybrids

Answer

Hybrids

Answer

Both A and B

Answer

None of the above