Nonmendelian Genetics
Vocab
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"A man is rich in proportion to the number of things which he can afford to do without." --Henry David Thoreau Walden
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chromosomal mutation
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a change in chromsome structure |
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codominance
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when the relationship between a pair of alleles is not dominant-recessive, but both alleles are expressed.
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incomplete dominance
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when neither of a pair of alleles is completely expressed when the other is present.
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linkage
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the tendency for a group of genes located on the same chromosome to be inherited together. |
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mutation
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a change in DNA structure.
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non-mendelain genetics
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principle of genetics extending beyond those of Mendel (the principles of segregation and of independent assortment). |
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point mutation
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a single change in the nucleotide sequence.
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pleiotropy
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a gene that affects a number of different characteristics.
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polygenic inheritance
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two or more genes that affect the same trait.
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sex-linked inheritance
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the inheritance of genes located on the sex chromosomes. In animals, almost all sex-linked genes are located on the X chromosome. |
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B R I G H A M
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Y O U N G U N I V E R S I T Y
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