TLS Online TPP Program

#Question id: 659


What does it mean to say a protein is oligomeric?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. In vivo it establishes an equilibrium between two or more active conformations.

  2. It has more than fifty amino acids.

  3. The active protein involves the association of two or more polypeptide chains.

  4. The protein has multiple α-helices.

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TLS Online TPP Program

#Question id: 12572

#Unit 10. Ecological Principles

Use what you know about ecosystem stability and the information provided in the graph below to answer the following question.
Which community (a-e) would likely be the most biodiverse?

TLS Online TPP Program

#Question id: 3591

#Unit 8. Inheritance Biology

Consider three yellow, round peas, labeled A, B, and C. Each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. Exactly 100 peas issuing from each cross were sorted into phenotypic classes as follows

A:        51 yellow, round

            49 green, round

B:      100 yellow, round

C:  24 yellow, round

      26 yellow, wrinkled

      25 green, round

      25 green, wrinkled

What were the genotypes of A, B, and C respectively?

TLS Online TPP Program

#Question id: 10148

#Unit 6. System Physiology – Plant

How light controls the assembly of chloroplast enzymes into supramolecular complexes?

a.) Light regulates the stability of the ternary complex through the ferredoxin–thioredoxin system

b.) Reduced thioredoxin cleaves the disulfide bonds of both phosphoribulokinase and CP12, releasing glyceraldehyde-3-phosphate dehydrogenase and phosphoribulokinase in the catalytically active conformations

c.) Oxidised thioredoxin cleaves the disulfide bonds of both phosphoglyceratekinase and CP12, releasing glyceraldehyde-3-phosphate dehydrogenase and phosphoglyceratekinase in the catalytically active conformations

d.) thioredoxin system oxidised the disulfide bonds and reduces the assembly of between chloroplast enzymes and CP12 and converted into the catalytically active conformations

Which of the following statement is correct?

TLS Online TPP Program

#Question id: 18882

#Unit 13. Methods in Biology

The resolving power of a microscope is determined by-

TLS Online TPP Program

#Question id: 1144

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NOT a common intracellular second messenger?