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TLS Online TPP Program

#Question id: 4353

The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because __.

#Unit 3. Fundamental Processes

  1. CRP binds cAMP

  2. CRP binds to the CAP-binding site

  3. CRP prevents binding of the repressor to the operator

  4. CRP bound to the CRP-binding site stimulates the transcription of the lac operon

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TLS Online TPP Program

#Question id: 12152

#Unit 10. Ecological Principles

When immigration from large, productive subpopulations keeps declining subpopulations from dwindling to extinction, the phenomenon is called the __________. 
TLS Online TPP Program

#Question id: 31236

#Unit 2. Cellular Organization

Centromeres associated cohesins are specifically protected by protein phosphatase 2A (PP2A). Protein phosphatase 2A (PP2A) is recruited to centromeric regions in human cells from G2 through metaphase by a member of a family of PP2A targeting factors known as: 
TLS Online TPP Program

#Question id: 7221

#Unit 5. Developmental Biology

The cells of the neural plate are characterized by expression of the Sox family of transcription factors (Sox1, 2, and 3). These factors-
TLS Online TPP Program

#Question id: 18989

#Unit 13. Methods in Biology

Luciferase (lux) and Green fluorescent protein (GFP) are the example of
TLS Online TPP Program

#Question id: 27067

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement regarding the stereochemistry of amino acid
1. 16 amino acid except (Thr, Ile, Cys, Gly) L Fischer projection is equal to S and D is equal to R configuration 
2. Thr, Ile is special case because of two chiral center exist in L – Ile/Thr – 2S,3R and D-Ile/Thr–2R,3S configuration  
3. Cys exiest in L- Cys – R & D- Cys – S configuration 
4. Gly is optically inactive