All bacteria that inhabit the human body are
Answer: A
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Which of the following plant propagation method uses girdling?
Answer: C
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Trypsin is used for dissociating the tissue into single cells.
Answer: A
Trypsin is a proteolytic enzyme and is used for dissociating the tissue into single cells. During the primary culture, tissue samples are taken generally from the embryos rather than the adult organism because of easy dissociation.
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Name the organism on which first cell line was observed?
Answer: C
First cell line observed was mouse fibroblast L cell which was derived from connective tissues of mouse by exposing it to a chemical carcinogen.
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Which of the following is NOT the major function of the serum?
Answer: A
Serum is the primary component of growth medium which helps in cell attachment and growth. It also provides transport protein for carrying hormone, lipids, and minerals.
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How does CO2 help in the cell metabolism during cell culture?
Answer: A
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Which of the followings are the metabolic products of glucose and glutamine?
Answer: C
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Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type?
Answer: C
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In the pour plate method, the mixed culture is diluted directly in tubes of
Answer: A
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During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?
Answer: D
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