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| One of the pair of chromosomes that determine the sex of an individual. X = female and Y = male. |
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| any chromosome that is not a sex chromosome is called an autosome. |
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| A trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chrosomomes in humans. |
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| One of a pair of genes that tend to be inherited together. |
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| a diagram of gene positions on a chromosome |
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| in chromosome mapping, an increment of 1 percent in the frequency of crossing-over. |
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| mutation that occurs in an organism's gametes. |
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| a mutation that occurs in a body cell. |
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| a gene or chromosomal mutation that influences the development of an organism in such a way that the organism cannot survive. |
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Definition
| the loss of a part of DNA from a chromosome. |
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| a reversal in the order of the genes, or of a chromosome segment, within a chromosome. |
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| the movement of a segment of DNA from one chromosome to another,which results in a change in the position of the segment; also the movement of soluble nutrients from one part of a plant to another. |
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| the failure of homologous chromosomes to separate during meiosis I or the failure of sister chromatids to separate during mitosis or meiosis II. |
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| a mutation in which only one nucleotide or nitrogrenous base in a gene is changed. |
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| a mutation in which a nucleotide or a codon in DNA is replaced with a different nucleotide. |
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Definition
| a mutation, such as the insertion or deletion of a nucleotide in a coding sequence, that results in the misreading of the code during translation because of a change in the reading frame. |
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Definition
| a mutation in which one or more nucleotides are added to a gene |
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