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| the different forms of a gene. Y and y are different allels of the genes that determine different seed colors |
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Definition
| a trait expressed preferentially over another trait |
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Definition
| offspring of a cross between true breeding plants, homozygous for the trait of inerest |
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Definition
| offspring of the cross involving F1 generation |
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Term
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Definition
| the genetic constitution of an organism with respect to a trait. yellow seeds are dominant,but yellow seed plants could have a genotype of YY or Yy |
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Definition
| differing alleles for a trait in an individual, such as Yy. |
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Definition
| both alleles for a trait are the same in an individual. they can be homozygous dominant (YY), or homozygous recessive (yy). |
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Definition
| heterozygous; usually referring to the offspring of two true-breeding (homozygous) individuals differing in the traits of interest |
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Definition
| cross involving parents differing in only one trait |
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Definition
| change in the DNA sequence of a gene to some new, heritable form. gennerally, but now always a recessive allele |
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Definition
| the physical aperance of an organism with respect to a trait |
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Definition
| the opposite of dominant. a trait is preferentially masked |
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Definition
| a gene coded on sex chromosome, such as the x-chromosome linked genes of flies and man |
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