(1). The most common substrate used in distilleries for the production of ethanol is

• (a). corn meal
• (b). soya meal
• (c). ground gram
• (d). molasses
• (e). None of these

(2). Maximum number of existing transgenic animals is of

• (a). fish
• (b). mice
• (c). cow
• (d). pig
• (e). None of these

(3). The process of RNA interference (RNAi) has been used in the development of plants resistant to

• (a). nematodes
• (b). fungi
• (c). viruses
• (d). insects
• (e). None of these

(4). Continuous addition of 2 sugars in 'fed batch' fermentation is done to

• (a). produce methane
• (b). obtain antibiotics
• (c). purify enzymes
• (d). degrade sewage
• (e). None of these

(5). Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein

• (a). binds with epithelial cells of midgut of the insect pest ultimately killing it
• (b). is coded by several genes including the gene cry
• (c). is activated by acid pH of the foregut of the insect pest
• (d). does not kill the carrier bacterium which is itself resistant to this toxin
• (e). None of these

(6). Silencing of mRNA has been used in producing transgenic plants resistant to

• (a). bollworms
• (b). nematodes
• (c). white rusts
• (d). bacterial blights
• (e). None of these

(7). Read the following four statements (A-D) about certain mistakes in two of them. I) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalburnin enriched. II) Restriction enzymes are used in isolation of DNA from other macromolecules. III) Downstream processing is one of the steps of rDNA technology IV) Disarmed pathogen vectors are also used in transfer of rDNA into the host. Which of the two statements have mistakes?

• (a). B and C
• (b). C and D
• (c). A and C
• (d). A and B
• (e). None of these

(8). Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency?

• (a). 'Flavr Savr' tomato
• (b). Canolla
• (c). Golden rice
• (d). Bt-Brinjal
• (e). None of these

(9). A patient brought to a hospital with myocardial infarction is normally immediately given

• (a). penicillin
• (b). streptokinase
• (c). cyclosporine-A
• (d). statins
• (e). None of these

(10). Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produces (in the host cells)

• (a). both sense and anti-sense RNA
• (b). a particular hormore
• (c). an antifeedant
• (d). a toxic protein
• (e). None of these