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because they can and do!
with the sides of dna which are sugar and phosphate
A genome is composed of DNA which is a nucleic acid composed of two long polymers called nucleotides with backbones and phosphates joined together with ester bonds.
Sugar phosphate backbones do not include the nucleic acids of the DNA. They are composed of a sugar and a phosphate group bonded to each other.
An octagon is composed of eight sides.
sugar
A triangle is an object composed of three sides and three angles.
Yes. the phylum chordata is composed of animals with spinal cords, of which the sub-phylum vertebrata (vertebrates) are animals with backbones.
the sides of a double helix are composed of a chain alternating between a phosphate and a deoxyribose (5 carbon) sugar.
No there is more with backbones
2 hemispheres
it has 2 backbones