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TLS Online TPP Program

#Question id: 24270

Integrins typically exhibit low affinities for their ligands, with

#Unit 4. Cell Communication and Cell Signaling
  1. Dissociation constants (Kd) between 10−2 and 10−3 mol/L.
  2. Dissociation constants (Kd) between 10−3 and 10−4 mol/L.
  3. Dissociation constants (Kd) between 10−1 and 10−2 mol/L.
  4. Dissociation constants (Kd) between 10−6 and 10−7 mol/L.
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TLS Online TPP Program

#Question id: 600

#Unit 1. Molecules and their Interaction Relevant to Biology

Two substances are used to produce a certain biological product in an enzyme-catalyzed reaction. It is found that both substrates must bind to the enzyme, first one, then the other before the product is produced. This is an example of a/an ________.
TLS Online TPP Program

#Question id: 22950

#Unit 5. Developmental Biology

APETALA1 belongs to the transcription factor family:
TLS Online TPP Program

#Question id: 33146

#Unit 2. Cellular Organization

Which of the following protein bind to CDK4 and CDK6 monomers, blocking their interaction with cyclin D and thus rendering these G1 CDKs inactive?
TLS Online TPP Program

#Question id: 12629

#Unit 6. System Physiology – Plant

During the biosynthesis of brassinosteroid derived from the sterol campesterol follows two types of the pathway
i) Late C-6 oxidation pathway
ii) Early C-6 oxidation pathway
follows  the different reaction performing in each  pathways such as,
a) Campesterol → Campestanol →6-Deoxoteasterone→ Castasterone→Teasterone →Brassinolide
b) Campesterol → 6-Oxocampestanol →Cathasterone →Teasterone → Castasterone →Brassinolide
c) Campesterol → Campestanol →6-Deoxocathasterone →6-Deoxoteasterone → Castasterone →Brassinolide
Find the correct combination of the each oxidation pathway with its performing sequences;
TLS Online TPP Program

#Question id: 4952

#Unit 11. Evolution and Behavior

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?