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TLS Online TPP Program

#Question id: 3868

The sigma factor of E. coli RNA polymerase: 

#XL - Q Biochemistry

  1. associates with the promoter before binding core enzyme.

  2. combines with the core enzyme to confer specific binding to a promoter.

  3. is inseparable from the core enzyme.

  4. is required for termination of an RNA chain.

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TLS Online TPP Program

#Question id: 3745

#XL - Q Biochemistry

In the Holliday model describing recombination
TLS Online TPP Program

#Question id: 3746

#XL - Q Biochemistry

During recombination in E. coli, ________ recognize(s) regions of sequence similarity and promote(s) strand invasion, while ________ bind(s) to a Holliday junction promoting strand migration.
TLS Online TPP Program

#Question id: 3747

#XL - Q Biochemistry

The sequence of proteins used in bacterial recombination is
TLS Online TPP Program

#Question id: 3748

#XL - Q Biochemistry

How are the BRCA proteins and their genes implicated in breast cancer?
TLS Online TPP Program

#Question id: 3749

#XL - Q Biochemistry

Which of the following statements describes the process of transformation in bacteria?
TLS Online TPP Program

#Question id: 3750

#XL - Q Biochemistry

Which of the following facts did Hershey and Chase make use of in trying to determine whether DNA or protein is the genetic material?