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TLS Online TPP Program

#Question id: 3867

RNA polymerase from E. coli (core enzyme alone) has all of the following properties except that it:

#SCPH06 I Botany

  1. can extend an RNA chain and initiate a new chain.

  2. is required for the synthesis of mRNA, rRNA, and tRNA in E. coli.

  3. produces an RNA polymer that begins with a 5'-triphosphate.

  4. recognizes specific start signals in DNA.

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TLS Online TPP Program

#Question id: 3861

#SCPH01 Biochemistry

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.
TLS Online TPP Program

#Question id: 2120

#SCPH06 I Botany

Which one of the following statements about membranes is true?
TLS Online TPP Program

#Question id: 11562

#SCPH28 | Zoology

The relationship between the insect hormones ecdysteroid and PTTH is an example of ________.
TLS Online TPP Program

#Question id: 11132

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

The sensation of temperature is signaled mainly by warm and cold receptors whose sensory fibers travel in association with the sensory fibers carrying pain signals. Which of the following statements best characterizes the transmission of signals from warm receptors?
TLS Online TPP Program

#Question id: 1660

#SCPH01 Biochemistry

Cleavage of IgG by papain produces: