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DNA Structure . CSCOPE Unit 06 Lesson 01. DNA. Deoxyribonucleic acid Double-stranded nucleic acid D ouble helix shape—like a twisted ladder Contains genetic information for cell functions, growth, and division. Nucleotide. Basic building block of nucleic acids
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DNA Structure CSCOPE Unit 06 Lesson 01
DNA • Deoxyribonucleic acid • Double-stranded nucleic acid • Double helix shape—like a twisted ladder • Contains genetic information for cell functions, growth, and division.
Nucleotide • Basic building block of nucleic acids • Three parts: • Sugar • Phosphate group • Nitrogen base
Deoxyribose Sugar • Sugar component in the backbone of DNA • 5-Carbon sugar
Phosphate Group • Binds with sugar in DNA backbone
Nitrogen Base Pairs • Nitrogen base pairs form the “rungs” of the DNA structure. • Adenine • Purine base that pairs with thymine • Thymine • Pyrimidine base that pairs with adenine • Cytosine • Pyrimidine base that pairs with guanine • Guanine • Purine base that pairs with cytosine