TLS Online TPP Program

#Question id: 3932


Which is not a feature of eukaryotic mRNA processing?

#Section 3: Genetics, Cellular and Molecular Biology
  1. addition of a 5ʹ-5ʹ triphosphate linkage to GTP

  2. methylation of the terminal CCA triad

  3. addition of a polyA tail to the 3ʹ end

  4. removal of intron sequences

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TLS Online TPP Program

#Question id: 27563

#Section 5: Bioprocess Engineering and Process Biotechnology

Match the instruments in Group 1 with their corresponding measurements in Group 2
Group 1                                                         Group 2
(P) Manometer                                              (1) Agitator speed
(Q) Rotameter                                               (2) Pressure difference
(R) Tachometer                                              (3) Cell number
(S) Haemocytometer                                     (4) Air flow rate

TLS Online TPP Program

#Question id: 15646

#Section 4: Fundamentals of Biological Engineering

The quantity of heat required to evaporate 1 kg of a saturated liquid is called

TLS Online TPP Program

#Question id: 3261

#Section 3: Genetics, Cellular and Molecular Biology

A parent population (P) is change into daughter populations (Q) which grow in habitats. After 1000 generations, the equilibrium frequency distribution of of the daughter populations is shown in the figure below. For reference, the vertical line represents the mean of the parent population. Which type of natural selection?

TLS Online TPP Program

#Question id: 18663

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

When a protein exists in mono-, di- and tri-phosphorylated forms. The difference of a couple of phosphate groups has no significant effect on the overall relative molecular mass of the protein, hence a single band on SDS gels, but the small charge difference introduced on each molecule can be detected by

TLS Online TPP Program

#Question id: 1270

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is a major extracellular molecule in mammals containing no protein portion?