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Definition
| change in a DNA sequence that affects genetic information |
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| enzymes that "proofread" new DNA strands, helping to ensure that each molecule is a nearly perfect copy of the original DNA |
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| Three-nucleotide sequence on messenger RNA and codes of a single amino acid |
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| Principle that bonds in DNA can form only between adenine and thymine and between guanine and eytosine |
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Definition
| a monomer of nucleic acid mode up of a 5-carbon sugar, a phosphate group, and a nitrogenous base |
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Definition
| Process in which homologous chromosomes exchange portions of their chromatids during meiosis |
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| Term used to refer to a cell that contains a single set of chromosomes and therefore only a single set of gene- one one cell organism |
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| term used to refer to a cell that contains both sets of homologous chromosomes-more than one-celled organism |
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| Disorder in which some of the body's own cells lose the ability to control growth |
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| series of events that goes through as they grow and divide |
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Definition
| period of the cell cycle between cell division |
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| area where the chromatids of a chromosome are attached |
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| one of the two identical "sister" parts of a duplicated chromosome |
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| sequence of DNA that code for a protein and thus determines a trait |
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Definition
| division of the cytoplasm during cell division |
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| Process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell |
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Definition
| Process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell |
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Definition
| process by which a cell divides into two new daughter cells |
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Term
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Definition
| a long molecule that contains our unique genetic code |
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