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what is the structure of a Double Helix
it is a twisted ladder composed of 2 strands of nucleotides wrapped around each other
what is a nucleotide made up of
deoxyribose, phosphates,and a nitrogenous base
how is the sugarphosphate backbone held together
by strong covalent bonds
how are the 2 strands held together
the 2 strands are held to each other by weak hydrogen bonds betwen the paired nitrogen bases
what are the complimentary base pairing rules
A only bonds to T, G only bonds to C
what did the understanding of the structure of DNA helps
understanding the structure of DNA allowed scientists to understand how it functions in replication and protein synthesis
