Stoichiometric equations are used to represent growth of microorganisms provided a ' molecular formula' for the cells is available. The molecular formula for biomass is obtained by measuring the amounts of C, N, H, O and other elements in cells. For a particular bacterial strain, the molecular formula was determined to be C4.4H7.30 1.2N0.86 . These bacteria are grown under aerobic conditions with hexadecane (C16H34) as substrate. The reaction equation describing growth is:

                             

You have been put in charge of a small fermenter for growing the bacteria and aim to produce 2.5 kg of cells for inoculation of a pilot-scale reactor. What minimum amount of hexadecane substrate must be contained in your culture medium? 

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#Question id: 11859

#General Aptitude

Six bells commence tolling together and toll at intervals of 2,4,6,8,10,and 12 seconds respectively . In 30 minutes , how many times do they toll together ?

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#Question id: 11860

#General Aptitude

The traffic lights at three different road crossing change after every 48 sec , 72 sec, and 108 sec. Respectively . If they all change simultaneously at 8 : 20 : 00 hours , then at what time will they again change simultaneously ?

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#Question id: 11901

#General Aptitude

If the length of the diagonal AC ofa square ABCD is 5.2 cm, then the area of the square is :

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#Question id: 12182

#Section 3: Genetics, Cellular and Molecular Biology

The cell cycle is controlled by protein kinases that comprise a catalytic subunit and a regulatory subunit. Which of the following statement is correct regarding to these subunits?

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#Question id: 12484

#Section 3: Genetics, Cellular and Molecular Biology

Match the following.

Column I	Column II
A. APC/CCdc20	i . responsible for ubiquitinating proteins, such as mitotic cyclins
B. APC/CCdh1	ii. responsible for destroying proteins, such as securin
	iii. promotes the metaphase–anaphase transition
	iv. Promotes exit from mitosis

Which of the following is correct?

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#Question id: 12678

#General Aptitude

The length of the diagonal of a square is ‘a’ cm. Which of the following represents the area of the square (in sq. cm.) ?