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TLS Online TPP Program

#Question id: 4948

RNA molecules can both carry genetic information and be catalytic. This supports the proposal that 

#XL - T Zoology

  1. RNA was the first hereditary information.

  2. protobionts had an RNA membrane.

  3. RNA could make energy.

  4. free nucleotides would not have been necessary ingredients in the synthesis of new RNA molecules.

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TLS Online TPP Program

#Question id: 15669

#XL - R Botany

 Which of the following is a description of generalized transduction?
TLS Online TPP Program

#Question id: 838

#XL - Q Biochemistry

Which of the following correct predict the transition state?
TLS Online TPP Program

#Question id: 548

#XL - R Botany

Which one of the following statements is true of enzyme catalysts?
TLS Online TPP Program

#Question id: 176

#XL - T Zoology

A peptide has the sequence Glu–His–Trp–Ser–Gly–Leu–Arg–Pro–Gly. What is the net charge of the molecule at pH 3
TLS Online TPP Program

#Question id: 14965

#XL - S Microbiology

An exotoxin is a toxin secreted by bacteria. It can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted by bacteria which