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-a heritable feature that varies among individuals within a population, such as flower color in a pea plant |
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- a varient of a character found within a population, such as purple flowers in pea plants |
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- the fusion of sperm and egg by the same individual organism, as in a pea plant |
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- the fusion of sperm and egg derived from two different individuals |
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- the offspring of parents of two different species or of two different varieties of one species |
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- a mating of two sexually reproducing individuals; often used to describe a genetics experiment involving a controlled mating |
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- referring to organisms for which sexual reproduction produces offspring with inherited traits identical to those of the parents; homozygous for a trait being considered |
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- the parent individuals from which offspring are derived in studies of inheritance (P= parental) |
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- the offspring of two parental (P generation) individuals (F1= first filial) |
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- the offspring of the F1 generation (F2= second filial) |
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- an experimental mating of individuals differing at one genetic locus |
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- an alternative version of a gene |
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- having two identical alleles for a given gene |
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- having two different alleles for a given gene |
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- the allele that determines the phenotype of a gene when the individual is heterozygous for that gene |
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- an allele that has no noticeable effect on the phenotype of a gene when the individual is heterozygous for that gene |
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- a general rule in inheritance that individuals have two alleles for each gene and that when gametes form during meiosis, the alleles seperate, each resulting gamete ending up with only one allele of each gene |
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- the expressed traits of an organism |
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- the genetic makeup of an organism |
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- an experimental mating of individuals differing at two genetic loci |
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Law of Independent Assortment |
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- a general rule in inheritance that when gametes form during meiosis, each pair of alleles for a particular characteristic segregate independently of other pairs |
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- the mating between an individual of unknown genotype for a particular characteristic and an individual that is homozygous recessive for that same characterisitic |
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- an individual who is heterozygous for a recessively inherited disorder and who therefore does not show symptoms of that disorder but who may pass on the recessive allele to offspring |
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- a type of inheritance in which the phenotypes of the heterozygote and dominant homozygote are indistinguishable |
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- a type of inheritance in which the phenotype of a heterozygote (Aa) is intermediate between the phenotypes of the two types of homozygotes (AA and aa) |
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- inheritance pattern in which a heterozygote expresses the distinct trait of both alleles |
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- the control of more than one phenotypic characteristic by a single gene |
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- the additive effect of two or more gene loci on a single phenotypic characteristic |
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Chromosome Theory of Inheritance |
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- a principle in biology stating that genes are located on chromosomes and that the behavior of chromosomes during meiosis accounts for inheritance patterns |
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- genes located near each other on the same chromosome that tend to be inherited together |
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- with respect to two given genes, the number of recombinant progeny from a mating divided by the total number of progeny |
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