Asked Dec 4, 2019

Which of the following statements DOES NOT apply to the Watson and Crick model of DNA?

a. The two strands of the DNA helix are anti-parallel.

b. The distance between the strands of the helix is 20 angstroms (A).

c. The framework of the helix consists of sugar-phosphate units of the nucleotides.

d. The two strands of the helix are held together by covalent bonds.

e. The purines are attracted to the pyrimidines.

...Explain your answer.


Expert Answer

In 1953, J.D Watson and F.H.C Crick proposed the three dimensional model of DNA. According to this model, the DNA consists of two polypeptide chains...

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