Practice Questions

TLS Online TPP Program

#Question id: 3881

Which one of the following statements about mRNA stability is true?

#Section 3: Genetics, Cellular and Molecular Biology

Degradation always proceeds in the 5' to 3' direction.
Degradation of mRNA by polynucleotide phosphorylase yields 5'-nucleoside monophosphates.
In general, bacterial mRNAs have longer half-lives than do eukaryotic mRNAs.
Secondary structure in mRNA (hairpins, for example) slows the rate of degradation.

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TLS Online TPP Program

#Question id: 4904

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statements is INCORRECT regards cytoplasmic inheritance?

TLS Online TPP Program

#Question id: 15563

#Section 5: Bioprocess Engineering and Process Biotechnology

How long will it take for the initial concentration of A to fall from 0.20 M to 0.075, if the rate constant for a reaction of zero-order in A is 0.035 mol L^–1 s^–1.

TLS Online TPP Program

#Question id: 71

#Section 2: General Biology

Which of the following is not the priority rule for R, S Configuration?

TLS Online TPP Program

#Question id: 15678

#Section 6: Plant, Animal and Microbial Biotechnology

Alcohols are among the most widely used disinfectants and antiseptics. They act by

TLS Online TPP Program

#Question id: 14684

#Section 1: Engineering Mathematics