The major drawback in using type Saccharomyces cerevisiae for producing ethanol from biomass hydrolysis is

Which of the following is the source of pro-vitamin A?

A. Streptococcus sp.

B. Rhodotorula gracilis

C. Rhizopus sp.

D. Yeast

The first stage in the screening of microorganisms for industrial applications is

A. Gene isolation

B. Isolation

C. Transduction

D. Hybridization

The first commercially produced plant secondary metabolite using bioreactor technology is

A. Shikonin

B. Colchicines

C. Cercosporin

D. Cytokinin

"Substances added prior to or simultaneously with the fermentation which are incorporated without any major change into the molecule of the fermentation product and which generally cause increases in the yield or improves the quality of the product" can be referred to as

A. Antifoam agents

B. Buffering molecules

C. Growth factors

D. Precursor molecules