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1
Which of the following is a prime example of a ribonucleoprotein enzyme, the catalytic activity of which (under non-physiological conditions), resides solely in its RNA component
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Answer: Option D
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2
Main functions of baffles in a bioreactor are
P. To prevent a vortex.
Q. To increase aeration.
R. To reduce interfacial area of oxygen transfer.
S. To reduce aeration rate.
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Answer: Option A
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3
All the following may be methods for the inhibition of microbial growth by antibiotics except
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Answer: Option C
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4
A feature common to almost all transmembrane proteins is
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Answer: Option D
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5
The distribution of transmembrane protein in the palne of a cell membrane can best be visualized by which of the following:
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Answer: Option B
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6
Broker, Chow, Roberts and P. Sharp hybridized mRNA from adenovirus to denatured adenovirus DNA and examined the resultant duplex molecules by electron microscopy. Which of the following did they observe?
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Answer: Option D
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7
If a mutation occurred in the phosphorylation site in the CTD domain of RNA polymerase II, which of the following outcomes would be observed?
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Answer: Option B
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8
A microorganism when viewed under a compound microscope with objective of 40X and eye piece of 10X magnification measured 400μ in length. The same microorganism when viewed under a dissecting microscope with 10X lens, would measure
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Answer: Option B
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9
Which of the following technique is used to inactivate a gene by altering the DNA encoding it?
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Answer: Option A
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10
Gene conversion is observed
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Answer: Option C
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