TLS Online TPP Program

#Question id: 7017


During tetrapod limb development, proliferative “progress zone” is covered by:

#Unit 5. Developmental Biology
  1. Apical ectodermal ridge
  2. Lateral plate mesoderm
  3. Mesenchymal cells from somites
  4. Both mesoderm and endoderm
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TLS Online TPP Program

#Question id: 4679

#Unit 3. Fundamental Processes

Activated RecA stimulates autocleavage of

TLS Online TPP Program

#Question id: 4680

#Unit 3. Fundamental Processes

A protein is a transcriptional activator,  which binds to a site upstream of a promoter called PRE and stimulates transcription of the cI (repressor) gene. This activator protein is

TLS Online TPP Program

#Question id: 4681

#Unit 3. Fundamental Processes

The promoters whose activities are controlled by products of the genes transcribed from PR and PL

TLS Online TPP Program

#Question id: 4682

#Unit 3. Fundamental Processes

what will happen, when repressor bound at OR1 and OR2,

TLS Online TPP Program

#Question id: 4683

#Unit 3. Fundamental Processes

A very unstable protein in E. coli; it is degraded by a specific protease called FtsH (HflB), encoded by the hfl gene.

TLS Online TPP Program

#Question id: 4684

#Unit 3. Fundamental Processes

The depicted region contains two genes (cI and cro) and three promoters (PR, PL, and PRM), these promoters are direct the transcription such as;

a) PR and PL are is a weak promoter and only directs efficient transcription when an activator is bound just upstream

b) PR and PL are strong, constitutive promoters, they bind RNA polymerase efficiently and direct transcription without     help from an activator

c) PRM, is a weak promoter and only directs efficient transcription when an activator is bound just upstream

d) PRM are strong, constitutive promoters, they bind RNA polymerase efficiently and direct transcription without help from an activator

Which of the following from the above combination is correct ?