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TLS Online TPP Program

#Question id: 10233

Which of the following statements is the most appropriate define character displacement?

#Unit 10. Ecological Principles

  1. Two related species depending on the same prey species avoid competition by feeding at different times of the day.

  2. The body sizes of two related species are very similar when they are allopatric but in geographical areas of sympatric, one species is significantly smaller than the other
  3. The food niche of a species is generally wider in the absence of competing species than in their presence.
  4. Closely related species can coexist if their densities are regulated by a predator
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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
TLS Online TPP Program

#Question id: 26447

#Unit 3. Fundamental Processes

Which polymerases are template-dependent, they incorporate nucleotides in a manner that is independent of base pairing
TLS Online TPP Program

#Question id: 26446

#Unit 3. Fundamental Processes

Which of the following is a universal marker for double strand breaks
TLS Online TPP Program

#Question id: 26445

#Unit 3. Fundamental Processes

In transcription-coupled repair (TC-NER) TFIIH, itself a large complex, which includes the products of two XP genes, XPB and XPD, which of the following is correctly representing the function of XPB and XPD