Agricultural Biotechnology MCQs

Question 1

Tetracyclin inhibits translation by

Accepted Answer

Binding to 30S subunit and interfers with aminoacyl-t RNA binding

Answer

Binding to 50S subunit and interfers with aminoacyl-t RNA binding

Answer

Causing misreading of codons

Answer

Blocking peptide bond formation

Question 2

Which of the following is non reducing sugar?

Accepted Answer

Both A and B

Answer

Sucrose

Answer

Trehalose

Answer

Maltose

Question 3

The transposase enzyme is present in

Accepted Answer

Ac element

Answer

Ds element

Answer

Both Ac-Ds element

Answer

Ac-Ds don't contain transposase

Question 4

According to the asssigned reading, in terms to total area of transgenic crops cultivated in 2001, the four major producers of transgenic crops (ranked highest to lowest) are

Accepted Answer

USA, Argentina, Canada, China

Answer

USA, China, Canada, India

Answer

USA, Canada, China, Argentina

Answer

None of these

Question 5

Which of the following statements is true regarding the production of transgenic cassava

Accepted Answer

The production of cyanide was enhanced by overexpression of an enzyme

Answer

A non-toxic cyanide derivative was production by metabolic engineering

Answer

The release of cyanide was inhibited by antisense gene regulation

Answer

The release of cyanide was inhibited by immunolocalization

Question 6

Salting out means

Accepted Answer

Increase in precipitation of proteins when large amount of salts are added

Answer

Increase in solubility of proteins when large amount of salts are added

Answer

Decrease in precipitation of proteins when large amount of proteins are added

Answer

Increase in solubility of proteins when small amount of salts are added

Question 7

Which organism is used to accumulate copper from factory waste?

Accepted Answer

Zaogloea ramigera

Answer

Baccillus subtillis

Answer

Pseudomonas putida

Answer

Baccillus thuriengenesis

Question 8

Nitogenase enzyme consists of

Accepted Answer

Both A and B

Answer

Fe-protein complex

Answer

Fe-Mo-protein complex

Answer

Either A and B

Question 9

Prosthetic group means

Accepted Answer

The nonproteinaceous part of conjugated protein

Answer

The proteinaceous part of conjugated protein

Answer

Both of the above

Answer

Protein conjugated with lipid molecule