Class XII

According to the nitrogen base pair ruling adenine (A) will only make a bond with ____________.
  1. urasil (U)
  2. guanine (G)
  3. thymine
  4. cytosine (C)
The shape of the double helix looks like a
  1. razor blade
  2. twisted ladder
  3. round balloon
  4. triangle
The process of transferring genetic information from the nucleus into the cytoplasm where proteins are actually produced requires completion of two specialized steps called:
  1. transcription and translation
  2. DNA & RNA
  3. sugar & bases
  4. transcription
Genetic material sometimes needs to leave the nucleus of the cell. This can be accomplished by using ________ to take messages to the outside of the nucleus.
  1. DNA
  2. CNA
  3. RNA
  4. none of the above
DNA carries the instructions for making ____________ made of amino acids.
  1. proteins
  2. nucleic acids
  3. nitrogen
  4. oxygen
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