Term
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Definition
| One of the four bases that combine with sugar and phosphate to form a nucleotide subunit of DNA; pairs with thymine |
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Definition
| One of the 4 bases that combine with sugar and phosphate to form a nucleotide subunit of DNA; pairs with cytosine |
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Definition
| One of the four bases found in DNA and RNA; pairs with guanine |
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Definition
| One of the four bases that combine with sugar and phosphate to form a nucleotide subunit of DNA; pairs with adenine |
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Term
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Definition
| A change in the nucleotide-base sequence of a gene or DNA molecule |
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Definition
| The duplication of a DNA molecule |
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Definition
| A nitrogenous base that has a single-ring structure; one of the 2 general categories of nitrogenous bases found in DNA and RNA; thymine, cytosine or uracil |
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Term
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Definition
| A nitrogenous base that has a double ring structure; one of the 2 general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine |
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Definition
| A y-shaped point that results when the 2 stands of a DNA double helix separate so that the DNA molecule can be replicated |
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Definition
| An enzyme that separates DNA strands |
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Term
| nitrogenous containing base |
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Definition
| An organic base that contains nitrogen, such as purine or pyrimidine; a subunit of a nucleotide in DNA and RNA |
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Definition
| An enzyme that catalyzes the formation of the DNA molecule |
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Definition
| 5 carbon sugar that is a component of DNA nucleotides |
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Term
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Definition
| The nucleotide bases in one strand of DNA or RNA that are paired with those of another strand; adenine pairs with thymine or uracil and guanine pairs with cytosine |
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Term
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Definition
| The spiral-staircase structure characteristic of the DNA molecule |
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Definition
| states that cytosine pairs with guanine and adenine pairs with thymine in DNA, and that adenine pairs with uracil in RNA |
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