Question

Which description best explains Watson and Crick's DNA model?
A:DNA single stranded molecule that has nitrogenus base towards its exterior

B:DNA is a double-helix made of 2 strands linked together with hydrogen bonds
C:DNa is a double-helix that contains nitrogenious bases towards its exterior

Answer 1

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Answer 2

They found that the structure of the DNA polymer was a two-stranded double helix. They deduced that it was made of nucleotides that consisted of a phosphate group attached to a five carbon sugar (deoxyribose) attached to one of four nitrogenous bases. These monomers are linked to one another between the phosphate group and the sugar which form the sugar-phosphate "backbone" of the molecule. Each base has a complimentary one that it lines up with in the sequence of nucleotides. The two strands run antiparallel to each other and H-bond into a double helix.

Answer 3

And Thanks Trey :3

Answer 4

:DNA is a double-helix made of 2 strands linked together with hydrogen bonds

Answer 5

thanks

Answer 6

haseebgul i got another question if you trying to help

Answer 7

and np

Answer 8

what is the question

Answer 9

hold on