The production and manufacturing costs can be reduced by _________

• A) Storage of strains
• B) Extra sample collection
• C) None of them
• D) Strain improvement

Strains that require specific markers for survival is called __________

• A) Old strains
• B) Suicidal strains
• C) Pure strains
• D) Prolonged strains

__________ has often been preferred for industrial applications

• A) P. Angusta
• B) Streptomyces
• C) Methylotrophs
• D) None of them

The technique which store different strains in liquid nitrogen is called?

• A) Cryopreservation
• B) Lyophilization
• C) Stock culture
• D) All of these

Which of the following are not removed during RNA processing?

• A) Nucleotides
• B) Introns
• C) Exons
• D) Nitrogen bases

Media components may account for upto _______ of process expenditure

• A) 50-60%
• B) 30-50%
• C) 70-80%
• D) 60-80%

Transformation of ___________ plants can be performed using plasmids derived from soil bacteria

• A) Monocotyledonous
• B) None of them
• C) Dicotyledonous
• D) Both of them

The spontaneous mutation rate in most bacterial genes are _______ per generation per gene.

• A) 10-20
• B) 10-10
• C) 20-20
• D) 20-10

Genetic engineering already has produced ___________

• A) Interferon
• B) Human growth hormone
• C) All of the above
• D) Insulin

Which of the following enzyme is used to make cDNA from RNA template?

• A) DNA gyrase
• B) DNA polymerase
• C) RNA polymerase
• D) Reverse transcriptase

In Gram-negative bacteria the secretion is always into the __________

• A) Cytoplasm
• B) Periplasmic space
• C) None
• D) Extra embryonic layer

The biomass yield coeffient (Y) is and index of the efficiency conversion of _______ into ______

• A) Substrate, coenzyme
• B) Enzyme, substrate
• C) Substrate, cellular material
• D) Cellular material, substrate

The pacemaker of any pathway tends to catalyze the ____ chemical reaction

• A) None of the above
• B) Fastest reaction
• C) Rate limiting reaction
• D) Moderate reaction

Most widely used and useful cloning vectors in biotechnology are____.

• A) Both A and B
• B) Bacteriophages
• C) Plasmids
• D) Bacterial Artificial chromosome

Most fermentation require liquid media often referred to as _______

• A) Semi-liquid
• B) Agar
• C) Broth
• D) None

The cell-wall less bacteria is also known as __________

• A) I-forms
• B) L-forms
• C) E-forms
• D) S-forms

Valuable products obtained at large scale by using recombinant biotechnology may include___

• A) All of These
• B) Insulin
• C) Human Growth Hormone
• D) Interferons