Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3653
TLS Online TPP Program

#Question id: 3866

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

#Unit 3. Fundamental Processes

  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.

More Questions
TLS Online TPP Program

#Question id: 10641

#Unit 10. Ecological Principles

The size of the population (N) is estimated as follows, what is parameter of M, S and R respectively? 
TLS Online TPP Program

#Question id: 1813

#Unit 4. Cell Communication and Cell Signaling

The T-cells in male H-2b SCID mice bearing a transgenic αβ T-cell receptor gene specific for H–Y in association with H-2Db will:
TLS Online TPP Program

#Question id: 4847

#Unit 8. Inheritance Biology

Determine distance between gene A and B, If cross allowed between neurospora I with AB genotype and Neurospora II with ab genotype. Following ascus are

AB AB ab ab 400

AB aB Ab ab 200

Ab Ab aB aB 50
TLS Online TPP Program

#Question id: 4339

#Unit 3. Fundamental Processes

In positive control of several sugar metabolism-related operons, the cAMP receptor protein (CRP) binds to DNA to stimulate transcription. Which of the following environmental conditions causes an increase in CRP activity in stimulating transcription?
TLS Online TPP Program

#Question id: 1699

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of CD1?