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TLS Online TPP Program

#Question id: 4139

Which one of the following statements about the elongation phase of protein synthesis is true?

#Part-A Aptitude & General Biotechnology

  1. At least five high-energy phosphoryl groups are expended for each peptide bond formed.

  2. During elongation, incoming aminoacylated tRNAs are first bound in the P site.

  3. Elongation factor EF-Tu facilitates translocation.

  4. Peptidyl transferase is a ribozyme.

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TLS Online TPP Program

#Question id: 545

#Part-A Aptitude & General Biotechnology

Which one of the following is not among the six internationally accepted classes of enzymes?
TLS Online TPP Program

#Question id: 551

#Part-A Aptitude & General Biotechnology

Enzymes differ from other catalysts in that only enzymes:
TLS Online TPP Program

#Question id: 553

#Part-A Aptitude & General Biotechnology

The concept of “induced fit” refers to the fact that:
TLS Online TPP Program

#Question id: 559

#Part-B Specialized Branches in Biotechnology

In competitive inhibition, an inhibitor:
TLS Online TPP Program

#Question id: 562

#Part-B Specialized Branches in Biotechnology

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?
TLS Online TPP Program

#Question id: 567

#Part-B Specialized Branches in Biotechnology

Penicillin and related drugs inhibit the enzyme; this enzyme is produced by