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TLS Online TPP Program

#Question id: 13039

 Which of the following is incorrect about a microarray?

#Unit 13. Methods in Biology
  1. It is a slide attached with a high-density array of immobilized DNA oligomers representing the entire genome of the species under study 
  2. Array of immobilized DNA oligomers cannot be cDNAs
  3. Each oligomer is spotted on the slide and serves as a probe for binding to a unique complementary cDNA 
  4. It is the most commonly used global gene expression profiling method
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TLS Online TPP Program

#Question id: 10487

#Unit 6. System Physiology – Plant

During the patch clamp experiments measure outward electric current in picoamps, pA at the plasma membrane of a guard cell protoplast stimulated by two points A and B showing in the graph.

What is A and B
TLS Online TPP Program

#Question id: 32327

#Unit 1. Molecules and their Interaction Relevant to Biology

If these 2 reactions are happening together the what will the overall free energy of the 

 
TLS Online TPP Program

#Question id: 726

#Unit 1. Molecules and their Interaction Relevant to Biology

The structure of a protein is known from X-ray diffraction studies which gave 30% - helix, 50% -sheet and 20% random coil. Circular dichroism (CD) measurements gave 50% -helix, 40% -sheet and 10% random coil. What could not be a possible explanation for these observations.
TLS Online TPP Program

#Question id: 13178

#Unit 10. Ecological Principles

Turnover of water in temperate lakes during the spring and fall is made possible by which of the following? 
TLS Online TPP Program

#Question id: 685

#Unit 1. Molecules and their Interaction Relevant to Biology

A protein has a molecular weight of 5600 daltons; its subunits are about 1960 daltons. There are ________ protein chains per oligomer.