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TLS Online TPP Program

#Question id: 756

The thermal denaturation of DNA may be reversed by cooling the solution. Rapid cooling allows:

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. the formation of local regions of dsDNA, formed by the base pairing of short regions of complementarity within or between DNA strands

  2. the wholly complementary DNA strands to find each other.

  3. Completely double helix formation

  4. All of the above are correct.

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TLS Online TPP Program

#Question id: 15779

#Unit 5. Developmental Biology

During stem cell regulation extracellular mechanisms leading to intracellular changes that regulate stem cell behaviour. Which of the following is not consider as extracellular mechanisms for stem cell regulation?
TLS Online TPP Program

#Question id: 15420

#Unit 5. Developmental Biology

signal from the inducing cell is necessary for initiating new gene expression in the responding cell. Without the inducing cell, the responding cell is not capable of differentiating in that particular way, phenomena known as:
TLS Online TPP Program

#Question id: 3002

#Unit 2. Cellular Organization

Cells are most sensitive to penicillin during which phase of the growth curve?
TLS Online TPP Program

#Question id: 11266

#Unit 10. Ecological Principles

Which of the following options lists ecosystems in increasing order of consumption efficiency of herbivore?
TLS Online TPP Program

#Question id: 14495

#Unit 13. Methods in Biology

A bag contains 5 white and 3 black balls. Two balls are drawn at random one after the other without replacement. The probability that both the balls drawn are black is