LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
For which discovery about DNA do Watson and Crick receive credit?
A
The shape of DNA is a double helix.
B
DNA is the molecule that genes are made of.
C
Phosphate-pentose bonding along the nucleotide backbone is covalent.
D
The amount of adenine equals the amount of thymine in an organism.
Explanation: 

Detailed explanation-1: -To maximize the efficiency of base-pair packing, the two sugar-phosphate backbones wind around each other to form a double helix, with one complete turn every ten base pairs (Figure 4-5).

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