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TLS Online TPP Program

#Question id: 3866

Which of the following statements about E. coli RNA polymerase (core enzyme) is false?

#SCPH01 Biochemistry

  1. In the absence of the B subunit, core polymerase has little specificity for where initiation begins.

  2. he core enzyme contains several different subunits.

  3. The core enzyme has no polymerizing activity until the  subunit is bound.

  4. The RNA chain grows in a 5' -> 3' direction.

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TLS Online TPP Program

#Question id: 807

#SCPH05 I Biotechnology

Which of the following forces can stabilize a normal DNA double-helix?
TLS Online TPP Program

#Question id: 1707

#I Life Science/ Life Sciences Group – I-V

The thoracic duct:
TLS Online TPP Program

#Question id: 5754

#SCPH28 | Zoology

A cell is exposed to EMS (a mutagen that causes guanine to mispair with thymine) and allowed to undergo a few rounds of DNA replication.  The mutational event caused by this mutagen will be
TLS Online TPP Program

#Question id: 5571

#I Life Science/ Life Sciences Group – I-V

Environmental cues that influence the timing of reproduction generally do so by ________.
TLS Online TPP Program

#Question id: 8840

#SCPH28 | Zoology

There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to