Animal Cell Culture and Regulation
Which of the following abnormality, resulted from the inheritance of an unbalanced complement of chromosomes can be diagnosed through karotyping?

all of these
Down's syndrome
Klinefelter's syndrome
Turner's syndrome

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Animal Cell Culture and Regulation
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?

The cells do not have enough oxygen
Ethyl alcohol is being produced in excess
The cells have too much oxygen
Glycolysis is being inhibited

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Animal Cell Culture and Regulation
An established cell line can be called where it has been subcultured at least

40 times at an interval of 3 days between subcultures
70 times at an interval of 3 days between subcultures
50 times at an interval of 3 days between subcultures
70 times at an interval of 1 day between subcultures

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Animal Cell Culture and Regulation
The major problem associated with the isolation of free cells and cell aggregates from organs is that of

releasing the cells from their supporting matrix
inhibiting the cells from their supporting matrix
disintegrating the cells from their supporting matrix
None of these

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