GATE BT discipline:life-sciences PYQs & Answers — Page 7

Questions 61–70 of 650. Imported answers require independent review unless marked reviewed.

A microbe that follows Monod growth kinetics on a limiting substrate (maximum specific growth rate of 0.5 h

and Monod constant of 0.1 mg L

) is cultivated in a continuous reactor for microbial growth (chemostat with sterile feed). Given that the chemostat volume is 5 L and inlet concentration of limiting substrate is 10 g L

, the minimum inlet feed flow rate for chemostat washout is ______ L h

. (rounded off to one decimal place)

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It is desired to cultivate 150 mg (dry weight) microbial cells with an empirical formula of C

N. If the phosphorus requirement for the cells is 20% of the nitrogen requirement (on a weight basis), the minimum amount of phosphorus required to be added to the cultivation medium is _______ mg. (rounded off to one decimal place)

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In the process of generating a clonal mammalian cell line, a single cell was seeded in a well of a cell culture plate. After the first 48 hours, one of the progeny cells underwent apoptosis due to a new mutation. If the doubling time of the cells is 24 hours and no more cell death occurs, the total number of cells after a total of 7 days from seeding will be _____. (answer in integer)

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A disease-associated allele shows X-linked recessive inheritance. If the mother is a carrier of the disease, the father is genetically normal and the child born is a son, then the probability that he is born with the disease is _____. (rounded off to one decimal place)

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A packed bed bioreactor with length 1 m and inside diameter 10 cm has liquid flowing at an interstitial velocity of 1 cm s⁻¹. Given a volumetric flow rate of 0.025 L s⁻¹, the void fraction of the packed bed is _____. (rounded off to two decimal places)

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Is there any good show ______ television tonight? Select the most appropriate option to complete the above sentence.

Your answerChoose one option.

within

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As the police officer was found guilty of embezzlement, he was ______ dismissed from the service in accordance with the Service Rules. Select the most appropriate option to complete the above sentence.

Your answerChoose one option.

sumptuously

brazenly

unintentionally

summarily

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The sum of the following infinite series is:

Your answerChoose one option.

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A thin wire is used to construct all the edges of a cube of 1 m side by bending, cutting and soldering the wire. If the wire is 12 m long, what is the minimum number of cuts required to construct the wire frame to form the cube?

Your answerChoose one option.