Chromosomal mutations Flashcards
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| 1930757274 | chromosome | A single piece of coiled DNA and associated proteins found in linear forms in the nucleus of eukaryotic cells and circular forms in the cytoplasm of prokaryotic cells; contains genes that encode traits. Each species has a characteristic number of chromosomes. | 0 | |
| 1930757275 | deletion | Change to a chromosome in which a fragment of the chromosome is removed | 1 | |
| 1930757276 | duplication | A change in chromosome's structure due to fusion with a fragment from a homologous chromosome, (it results in a portion of a chromosome being repeated on the same chromosome). | 2 | |
| 1930757277 | inversion | (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed | 3 | |
| 1930757278 | monosomy | A condition in a diploid cell in which one chromosome of one pair is missing (totaling 1 copy of that chromosome) as a result of nondisjunction during meiosis. | 4 | |
| 1930757279 | nondisjunction | Error in meiosis in which homologous chromosomes fail to separate. | 5 | |
| 1930757280 | translocation | Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome | 6 | |
| 1930757281 | trisomy | A condition in a diploid cell in which an extra chromosome of one pair is present (totaling 3 copies of that chromosome) as a result of nondisjunction during meiosis. | 7 |