TLS Online TPP Program

#Question id: 243


Deoxythymidine is a ________ found mainly in DNA.

#Section 2: General Biology
  1. nucleotide

  2. deoxynucleotide

  3. nucleoside

  4. deoxynucleoside

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TLS Online TPP Program

#Question id: 14166

#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:

                             

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? 

TLS Online TPP Program

#Question id: 14252

#Section 5: Bioprocess Engineering and Process Biotechnology

Yeast cells are recovered from a fermentation broth by using a tubular centrifuge. Sixty percent (60%) of the cells are recovered at a flow rate of 12 l/min with a rotational speed of 4000 rpm. Recovery is inversely proportional to flow rate. At a constant rpm of 4000 rpm, what should be the flow rate to result in 95% cell recovery?
________________-

TLS Online TPP Program

#Question id: 1543

#Section 3: Genetics, Cellular and Molecular Biology

Effector  cytokines of TH 1 cells?

TLS Online TPP Program

#Question id: 4145

#Section 3: Genetics, Cellular and Molecular Biology

Steriod hormone response elements (HREs) are _ , which, when bound to _, alter gene expression at the level of _.

TLS Online TPP Program

#Question id: 17918

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

Match the items in Group 1 with an appropriate description in Group 2

Group 1                                                   Group 2
P. PSI-BLAST                                   1. Protein sequence database
Q. CLUSTALW                                  2. Profiles
R. SWISS-PROT                              3. Needleman-wunsh algorithm
S. Global alignment                         4. Multiple sequence alignment