TLS Online TPP Program

#Question id: 19914


In aerobic yeast fermentation for production of citric acid from alkanes using a fed-batch culture, why alkanes are slowly fed to the yeast?

#Section 5: Bioprocess Engineering and Process Biotechnology
  1. Citric acid is toxic to the cells
  2. Alkanes cause foaming
  3. Fast addition of alkanes will inhibit the cells and reduce oxygen transfer rates
  4. Fast addition of alkanes will cause the cells to grow too quickly
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TLS Online TPP Program

#Question id: 15139

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

Which one of the following is NOT a structure or structurally derived database?

TLS Online TPP Program

#Question id: 15140

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

Two types of pair-wise sequence alignment of the same hypothetical protein sequence fragments are illustrated in the figure below. Vertical bars between the sequences indicate the presence of identical amino acids. * symbols in Figure Y indicate residues not included in the alignment.





Which one of the following is correct?

TLS Online TPP Program

#Question id: 15141

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

An alignment of two protein sequences is given below:

Sequence A         A G A A C D E V I G
Sequence B         A G E Y C D A V I G
The similarity score (%) for the above alignment will be:

TLS Online TPP Program

#Question id: 15142

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

Dot matrix analysis of the amino acid sequences of lambda phage cI (horizontal sequence) and phage P22 c2 (vertical sequence) repressors is shown below. Which one of the following is correct?

TLS Online TPP Program

#Question id: 15143

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

Which one of the following is a depiction of the GenBank sequence entry format?

TLS Online TPP Program

#Question id: 15167

#Section 6: Plant, Animal and Microbial Biotechnology

Bacteria on fish caught in the Arctic Ocean would