Question
Asked Dec 4, 2019
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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.

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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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