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cell reproduction
cell reproduction key terms
| Term | Definition |
|---|---|
| Nitrogen Base | One of three components of a nucleotide, nitrogen bases come in two general types: purines and pyrimidines. Of the four nitrogen bases, adenine and guanine are purines, while cytosine and thymine are pyrimidines. Through hydrogen bonding, base pairs link |
| Nucleic Acid | A chain of nucleotides joined together by phosphodiester bonds. Both DNA and RNA are nucleic acids. |
| Nucleotide | A five |
| Phosphate Backbone | Refers to the structural organization of the DNA double |
| Phosphate Group | One of three components of a nucleotide, comprised of a central phosphorous surrounded by four oxygens. The phosphate links to the sugar group, carries a negative charge because of the chemical interaction between phosphorous and oxygen, and forms the ext |
| Phosphodiester linkage | In a polynucleotide, refers to the bond between the 3' hydroxyl of a sugar group in a nucleotide and a phosphate group attached to the 5' carbon of another sugar group. |
| Pitch | In a helix, refers to the vertical distance traveled in one full turn (360 degrees of twist). |
| Primary Structure | In DNA and RNA, refers to the linear sequence of base pairs or amino acids in a polynucleotide chain. |
| Purine | One of two categories of nitrogen base ring compounds found in DNA and RNA. A purine is a nine |
| Pyrimidine | One of two categories of nitrogen base ring compounds found in DNA and RNA. A six |
| Ribose | The sugar group of RNA, a five |
| Right Hand Rule | A trick used to quickly determine the "handedness" or orientation of a helix. In a right |
| Rise | In a helix, the vertical distance traveled when moving from one base pair to the adjacent base pair. |
| Secondary Structure | In DNA and RNA, the local folding patterns of a polynucleotide based on complementary base |
| Sugar Group | One of three components of a nucleotide, a five |
| Tertiary Structure | In DNA and RNA, the complex three |