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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: 14170

#Section 5: Bioprocess Engineering and Process Biotechnology

Unsweetened condensed milk is a shelf-stable canned milk product. If 100kg of fresh milk, containing 87% water and the rest milk solids, is condensed using an evaporator to remove 60% of the water from the fresh milk, calculate:

The final mass and composition of condensed milk produced
TLS Online TPP Program

#Question id: 14171

#Section 4: Fundamentals of Biological Engineering

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:

In a batch reactor of volume 10^5 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the concentration and total amount of glucose in the nutrient medium?
TLS Online TPP Program

#Question id: 14171

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:

In a batch reactor of volume 10^5 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the concentration and total amount of glucose in the nutrient medium?
TLS Online TPP Program

#Question id: 14172

#Section 4: Fundamentals of Biological Engineering

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:
In a batch reactor of volume 105 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the yield coefficients YX/S (biomass/glucose)?
TLS Online TPP Program

#Question id: 14172

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:
In a batch reactor of volume 105 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the yield coefficients YX/S (biomass/glucose)?
TLS Online TPP Program

#Question id: 14173

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:
In a batch reactor of volume 10^5 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the yield coefficient YX/O2 (biomass/oxygen)?