II and III thesis statement topic sentences
The backbone is made of tiny bones, called vertebrae, that make up one large backbone, or vertebral column.
Sugar and phosphate are the parts that make up the DNA backbone.
The back
Vertebrae
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sugar
Deoxyribose sugars and phosphates make up the backbone of DNA.
Axial
endoskeleton;)
The backbone of the DNA molecule consists of a sugar, deoxyribose and a phosphate group. --(sugars and phosphates)
a phosphate, sugar and base