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TLS Online TPP Program

#Question id: 1095

What does it mean to say that a signal is transduced?

#Section 3: Genetics, Cellular and Molecular Biology

  1. The signal enters the cell directly and binds to a receptor inside.

  2. The physical form of the signal changes as it passes from the cell membrane to the ultimate intracellular target.

  3. The signal is amplified, such that even one signal molecule evokes a large response.

  4. The signal triggers a sequence of phosphorylation events inside the cell.

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TLS Online TPP Program

#Question id: 27169

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

Which of the option is not suitable for given alignment
TLS Online TPP Program

#Question id: 27170

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

Pfam database contains information of
TLS Online TPP Program

#Question id: 27171

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

The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______% and _____%.
Peptide I :
Phe-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr
Peptide II:
Tyr-Ala-Lys-Glu-Gln-Tyr-Ile-Ser-Phe-Thr
TLS Online TPP Program

#Question id: 27172

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

Which option is correct for EMBL format?
TLS Online TPP Program

#Question id: 27175

#Section 5: Bioprocess Engineering and Process Biotechnology

A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g- DCW)-1h-1 is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L-1). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately
TLS Online TPP Program

#Question id: 27176

#Section 5: Bioprocess Engineering and Process Biotechnology

A strain of Azotobacter vinelandii is cultured in a 15-m³ stirred fermenter for alginate production. Under current operating conditions, ka is 0.17 s¹. The solubility of oxygen in the broth is approximately 8 × 10-3 kg m -3.
(a) The specific rate of oxygen uptake is 12.5 mmol g-1h-1. What is the maximum cell concentration supported by oxygen transfer in the fermenter.............in g/l