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| A virus that infects bacteria |
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| In a nucleic-acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base |
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| The spiral-staircase structure characteristic of the DNA molecule |
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| the rules stating that cytosine pairs With guanine and adenine pairs with thymine in DNA, and that adenine pairs with uracil in RNA |
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| The duplication of a DNA molecule |
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| An enzyme that catalyzes the formation of the DNA molecule |
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Definition
| information flows in one direction, from DNA to RNA to proteins |
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Definition
| ribonucleic acid, is a chain of nucleotides, each made of a sugar,a phosphate group, and a nitrogen containing base. RNA is a temporary copy of DNA that is used and then destroyed. |
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| Intermediate message that is translated to form a protein |
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| forms part of ribosomes,a cells protein factories |
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| brings amino acids from the cytoplasm to a ribosomes to help make the growing protein. |
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| The process of copying a sequence of DNA to produce a complementary strand of RNA. |
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| Enzymes that bond nucleotides together in a chain to make a new RNA molecule. |
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| A DNA segment that allows a gene to be transcribed. |
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| A region of DNA that includes a promoter, an operator, and one or more structural genes that code for all the proteins needed to do a specific task. |
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| Nucleotide segments that code for parts of the protein. |
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Definition
| nucleotide segments that intervene, or occur, between exons. |
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| A change in an organism's DNA. |
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| A mutation in which one nucleotide is substituted for another. |
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| Involves the insertion or deletion of a nucleotide in the DNA sequence. |
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| Agents in the environment that can change DNA. |
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