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Definition
| one of a number of different forms of a gene |
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| threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next |
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| situation in which both alleles of a gene contribute to the phenotype of the organism |
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| process in which the homologous chromosomes exchange portions of their chromatids during meiosis |
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| joining male and female productive parts from two different plants |
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| cross of two lines that differ in two observed traits. |
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| term used to refer to a cell that contains both sets of homologous chromosomes |
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| genes who's allele is more likely to appear in offspring. |
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| first filial generation; 1st gen of hybrid offspring |
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| second filial generation; offspring of self pollinated F1 |
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| reproductive male and female cells joining together |
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| chemical factors that determine traits |
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| the nucleotides that make up cotas |
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Definition
| the appearance in a phenotype of a characteristic or effect attributed to a particular gene. |
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| relative location shown by gene map |
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| sum total of all different forms of genetic information carried by all organisms living on Earth today |
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| having different types of genetic information among a group |
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| scientist who did pea experiment,created basis of modern science of genetics |
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| "one set" single set of chromosomes |
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Definition
| what you inherit from family; genes |
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Definition
| Organisms that have two different alleles for the same trait |
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Definition
| 4 chromosomes that came from male parent have a corresponding chromosome from female parent |
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| two identical alleles for a praticular trait |
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| offspring of crosses between parents with different traits |
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| where one allele is not completely dominant |
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| principle that states genes for different traits can segregate independently during the formation of gametes. |
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| Mendel; states that allele pair separate during gamete formation and randomly reunite at fertilization |
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Definition
| process of reduction divsion in which the number of cells is cut in half through the separation of homologous chromosomes in a diploid cell |
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Definition
| basic principals of genetics that can be applied to plants and animals |
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Definition
| mating between two individuals with different alleles at one genetic locus of interest |
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| genetic locus having more than two allelic forms within a population |
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Definition
| failure to seperate one or more pairs of homologous chromosomes or sister chromatids during nuclear division, resulting in abnormality |
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| start of Mendel's work on inheritance |
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| alleles where phenotype is affected by more than one gene |
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| likelihood event will occur |
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| shows probability of possible outcomes of genetic crosses |
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| trait that is carried with each generation but does not always show |
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Definition
| true breeding plants do this, a-sexual reproduction |
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Definition
| structure formed by 4 chromatids during meiois |
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| specific characteristic that varies from one person to another |
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Definition
| produce offspring identical to self |
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