[" Probiotics are "],[" (a).cancer inducing microbes "],[" (b).new kind of food allergens "],[" (c).live microbial food supplement "],[" (d).safe antibiotics "]

Probiotic is - (A) Preserved antibiotic (B) Cancer producing microbes (C) Most reactive elements of food (D) Live microbial food supplements

Major function of cortex is (a) conduction of water (b) storage of water (c) storage of food (d) strength

Major function of cortex is (a) conduction of water (b) storage of water (c) storage of food (d) strength

Hybridomas are employed for (a) Production of somatic hybrids (b) Killing cancer cells (c) Synthesis of antibiotics (d) Synthesis of monoclonal antibodies

Parasite can be explained as an organism which depends on others : (a) for food (b) for shelter (c) for both food and shelter , and (d) for reproduction .

Which of the following statements are true if about microbes ? (P) Both bacteria and fungi are prokaryotes. (Q) Except some microbes many microbes are useful to mankind (R) Some food materials which we take in our daily diet are obtained by microbial process. (S) Many products useful to mankind are synthesized at commercial level through microbes. (A) (P) and (S) (B) (Q), (R) and (S) (C) (P), (Q) and (R) (D) (P), (Q), (R) and (S)

What could be the possible harm of using antibiotic resistant gene as a selectable marker in plasmid, used for gene transfer in production of GM food? (A) GM food contains the enzyme produced by the antibiotic resistance gene that was used during gene tranfer in genetic engineering. This could cause allergies since it is a foreign protein. (B) The bacteria present in the alimentary canal of the humans could take up the antibiotic resistance gene present in GM food. (C) The bacteria in the human alimentary canal would then become resistant to the concerned antibiotic. (D) The transgene may be transferred through pollen to their wild relatives and make weeds more persistant and damaging.

What could be the possible harm of using antibiotic resistant gene as a selectable marker in plasmid, used for gene transfer in production of GM food? (A) GM food contains the enzyme produced by the antibiotic resistance gene that was used during gene tranfer in genetic engineering. This could cause allergies since it is a foreign protein. (B) The bacteria present in the alimentary canal of the humans could take up the antibiotic resistance gene present in GM food. (C) The bacteria in the human alimentary canal would then become resistant to the concerned antibiotic. (D) The transgene may be transferred through pollen to their wild relattves and make weeds more persistant and damaging.

Which of the following are chemical changes ? (a) Growth of a plant (b) Rusting of iron (c ) Mixing of iron filings and sand (d) Cooking of food (e ) Digestion of food (f) Freezing of water (g) Burning of a candle