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TLS Online TPP Program

#Question id: 27314

A feature of RNA that adds to its propensity to form double-helical structures is additional non-Watson–Crick base pairs. One such example is the G:U base pair, which has

#Section 3: Genetics, Cellular and Molecular Biology

  1. hydrogen bonds between N1 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N1 of guanine.

  2.  hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C6 of uracil and N7 of guanine. 
  3. hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N1 of guanine.
  4. hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N7 of guanine. 
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TLS Online TPP Program

#Question id: 17286

#Section 1: Engineering Mathematics

Consider the following grouped frequency distribution :
 
What is the median of the distribution ? 
TLS Online TPP Program

#Question id: 431

#Section 4: Fundamentals of Biological Engineering

Which is not generally a molecule used to conserve energy?
TLS Online TPP Program

#Question id: 15927

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following is the characteristics of a normal cell?
TLS Online TPP Program

#Question id: 644

#Section 2: General Biology

Enzyme X and Enzyme Y are both involved in monosaccharide metabolism. Enzyme X uses glucose as a substrate while Enzyme Y uses fructose as a substrate. At pH=7.0, Enzyme X has a Vmax of 10 μM/s while Enzyme Y has a Vmax of 20 μM/s. Both enzymes have a Km of 3.0 mM for their respective substrates. Which aspects of its reaction will be changed by Enzyme Y?
TLS Online TPP Program

#Question id: 14165

#Section 5: Bioprocess Engineering and Process Biotechnology

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:

                                    

Assuming 100% conversion, what is the yield of cells from oxygen in g g-l?