Q. SV 40 vectors, in which late region replacements are done, require

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Q. Which of the following(s) is/are the most commonly used markers in yeast?

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Q. Which of the following are produced in high copy number?

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Q. Yeast Replicating plasmids (YRp) carry

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Q. Which of the following viruses are used as vectors for transferring genes to animal cells?

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Q. Recombinant adeno virus can be created by deleting E1A/E 1B genes that are

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Q. Retroviruses have advantage for being used as vector for animal cells because

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Q. Using bovine papilloma virus (BPV) derived vectors, permanent cell lines can be obtained carrying a recombinant DNA

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Q. Sometimes cell lines can be cultured for such a long time that they apparently develop the potential to be subcultured indefinitely in vitro. Such cells lines are called

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Q. Higher dissolved oxygen concentration in the culture media are toxic and lead to

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Q. Which of the following is the technique used for the embryo culture?

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Q. The major problem associated with the isolation of free cells and cell aggregates from organs is that of

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Q. For culturing, plasma from the adult chicken is preferred to mammalian plasma because

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Q. Toxicity due to accumulation of ammonia can be overcome

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Q. Range of osmolarity tolerated/accepted in mOsm/Kg of H2O by mammalian cells is

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Q. Disaggregating of cells can be achieved by

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Q. Accumulation of lactate leads to

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Q. When dissolved oxygen is lower than the critical concentration, viable cell concentration declines because of

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Q. According to Eagle, the growth of L-strain and Hela-strain cultures require to have mandatory presence of

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Q. Excess CO2 suppress cell growth and productivity by

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