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TLS Online TPP Program

#Question id: 3869

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

#SCPH06 I Botany

  1. It can start new chains de novo or elongate old ones.

  2. It has no catalytic activity unless the sigma factor is bound.

  3. It uses nucleoside 5'-triphosphates as substrates.

  4. Its activity is blocked by rifampicin.

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TLS Online TPP Program

#Question id: 8930

#SCPH28 | Zoology

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the
TLS Online TPP Program

#Question id: 11333

#SCPH06 I Botany

Small geographic areas with high concentrations of endemic species and a large number of endangered and threatened species are known as
TLS Online TPP Program

#Question id: 2610

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

Binding of RNA polymerase over promoter synthesizes
TLS Online TPP Program

#Question id: 5089

#SCPH01 Biochemistry

The archenteron of the developing sea urchin eventually develops into the ________.
TLS Online TPP Program

#Question id: 9207

#SCPH06 I Botany

Loss of biodiversity matters not only with regard to mammals or other vertebrates, but also microbes. Why are microbes worthy of discovery and protection from extinction?