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TLS Online TPP Program

#Question id: 27339

The number of base pair in a single turn of B-form DNA about the axis of the molecule is_____?

#Section 3: Genetics, Cellular and Molecular Biology
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TLS Online TPP Program

#Question id: 5249

#Section 3: Genetics, Cellular and Molecular Biology

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?
TLS Online TPP Program

#Question id: 13077

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

The DNA probes for RFLP may NOT be obtained from
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: 1936

#Section 2: General Biology

Stimulation of a single B cell would result in the generation of a clone of cells having_____
TLS Online TPP Program

#Question id: 14409

#Section 2: General Biology

A spheroplast also a spherical structure is obtained by