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TLS Online TPP Program

#Question id: 23851

DNA fragments from a gel are transferred to a nitrocellulose paper during the procedure called Southern blotting. What is the purpose of transferring the DNA from a gel to a nitrocellulose paper?

#Unit 13. Methods in Biology
  1. to attach the DNA fragments to a permanent substrate
  2. to separate the two complementary DNA strands
  3. to transfer only the DNA that is of interest
  4. to prepare the DNA for digestion with restriction enzymes
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TLS Online TPP Program

#Question id: 10206

#Unit 6. System Physiology – Plant

The excess energy is absorbed by three carotenoids molecules such as violaxanthin, antheraxanthin, and zeaxanthin, which of the following statements correct about these molecules?
TLS Online TPP Program

#Question id: 5127

#Unit 5. Developmental Biology

The following are certain statements regarding stem cells. Which one is correct?
TLS Online TPP Program

#Question id: 5085

#Unit 5. Developmental Biology

An embryo with meroblastic cleavage, extraembryonic membranes, and a primitive streak must be that of ________.
TLS Online TPP Program

#Question id: 18744

#Unit 13. Methods in Biology

What is the disadvantage of amplification of using PCR over natural cloning?
TLS Online TPP Program

#Question id: 10773

#Unit 8. Inheritance Biology

What is Pseudo dominance?