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TLS Online TPP Program

#Question id: 3887

Aptamers are

#Section 3: Genetics, Cellular and Molecular Biology

  1. double-stranded RNA products of nuclease action on hairpin RNAs

  2. repeat sequence elements at the ends of transposons.

  3. small RNA molecules selected for tight binding to specific molecular targets.

  4. the RNA primers required for retroviral replication.

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TLS Online TPP Program

#Question id: 564

#Section 2: General Biology

A good transition-state analog:
TLS Online TPP Program

#Question id: 565

#Section 2: General Biology

A transition-state analog:
TLS Online TPP Program

#Question id: 566

#Section 2: General Biology

The role of the metal ion (Mg2+) in catalysis by enolase is to
TLS Online TPP Program

#Question id: 567

#Section 2: General Biology

Penicillin and related drugs inhibit the enzyme; this enzyme is produced by 
TLS Online TPP Program

#Question id: 568

#Section 2: General Biology

Which of the following statements about allosteric control of enzymatic activity is false?
TLS Online TPP Program

#Question id: 569

#Section 2: General Biology

A small molecule that decreases the activity of an enzyme by binding to a site other than the catalytic site is termed a(n):