DSSSB · General Awareness

Which major observation of Erwin Chargaff formed the basis of complementary base pairing in double-stranded DNA?

  1. The ratio of adenine to thymine and the ratio of guanine to cytosine are not fixed and are equal to two.
  2. The ratio of adenine to thymine and the ratio of guanine to cytosine are not fixed and are equal to one.
  3. The ratio of adenine to thymine and the ratio of guanine to cytosine are fixed and equal to two.
  4. The ratio of adenine to thymine and the ratio of guanine to cytosine are constant and equal to one.
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