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TLS Online TPP Program

#Question id: 12916

Which statement is correct for Zoo blotting?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. Used to search for related genes in different species.
  2. Used to search for different  genes in different species.
  3. Used to search for different  genes in the same species.
  4. Used to search for related  genes in related  species.
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TLS Online TPP Program

#Question id: 1705

#Section 2: General Biology

What is the single best definition of the most common form of antigen recognized by the T-cell receptor (TCR)
TLS Online TPP Program

#Question id: 19336

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

Which one of the following biosensors is used for therapeutic applications?
TLS Online TPP Program

#Question id: 14213

#Section 5: Bioprocess Engineering and Process Biotechnology

Which phase has the condition of specific growth rate “μ = 0”?
TLS Online TPP Program

#Question id: 14248

#Section 5: Bioprocess Engineering and Process Biotechnology

A steam steriliser is used to sterilise liquid medium for fermentation. The initial concentration of contaminating organisms is 108 per litre. For design purposes, the final acceptable level of contamination is usually taken to be 10-3cells; this corresponds to a risk that one batch in a thousand will remain contaminated even after the sterilisation process is complete. For how long should 1 m3 medium be treated if the temperature is 140⁰C ________________.

        To be safe, assume that the contaminants present are spores of Bacillus stearothermophilus, one of the most heat-resistant microorganisms known. For these spores the activation energy for thermal death is 283 kJ gmo1-1 and the Arrhenius constant is 1036.2 s-1

TLS Online TPP Program

#Question id: 12926

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

PCR is undertaken with a fluorescence reporter / quencher pair called______