TLS Online TPP Program

#Question id: 13140


One summer the moose population on Island was unusually high, and park naturalists noticed signs of malnutrition among the  adults.  The wolf population  was  fairly  low,  near  20.  That  winter,  for  the  first  time  in  many  years,  a substantial  number of seemingly healthy adult moose as well as calves and crippled animals were killed and eaten by wolves. This description is part of a general situation in which the wolf and moose populations

#Unit 10. Ecological Principles
  1. Are maintained in a stable equilibrium, from year to year
  2. Are simultaneously becoming extinct 
  3. Fluctuate out of phase with each other 
  4. Fluctuate independently of each other
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TLS Online TPP Program

#Question id: 26453

#Unit 3. Fundamental Processes

Some of the sigma subunit of E. coli and function is given, Choose which of the following is incorrectly matched

TLS Online TPP Program

#Question id: 26452

#Unit 3. Fundamental Processes

Holoenzyme shows highest affinity at

TLS Online TPP Program

#Question id: 26451

#Unit 3. Fundamental Processes

Which of the following characteristics of sigma affect non specific binding of the core

TLS Online TPP Program

#Question id: 26450

#Unit 3. Fundamental Processes

Which of the following statements is true regarding bacterial RNA polymerase   
a. Core enzyme can efficiently transcribe both intact and nicked DNA 
b. Sigma destabilizes nonspecifically bound core 
c. Holoenzyme bind tightly to DNA 
d. Higher disassociation rate at lower temperature 
e. Most of the cellular sigma are house keeping gene

TLS Online TPP Program

#Question id: 26449

#Unit 3. Fundamental Processes

Ability of core and holoenzyme to transcribe DNAs differs, so choose which of the following is correct
a.With  subunit, the holoenzyme worked equally well on both intact as well as nicked types of DNA
b.With  subunit, the holoenzyme worked unequally on both intact as well as nicked types of DNA
c.Core subunit α2ββσ can not perform polymerization on to the intact DNA while perform some of the activity on to the nicked DNA
d.Core subunit α2ββσ can not perform polymerization on to the intact DNA AS WELL AS  to the nicked DNA

TLS Online TPP Program

#Question id: 26448

#Unit 3. Fundamental Processes

Choose the correct statement regarding DNA photolyase 
a.MTHF polyglu absorb blue light photon of 300-500 nm
b.And the MTHF polyglu radicalize FADH cofactor
c.And this FADH cofactor donate single electron to CBD 
d.And this FADH cofactor donate many electron to CBD