Term
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Definition
| Unit of information on heritable traits, which parents transmit to offspring |
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Term
| Diploid Chromosome Number |
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Definition
| Pairs of genes, on pairs of homologous chromosomes (2n) |
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Term
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Definition
| alters a gene's molecular structure and its message about a trait; may cause the trait to change |
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Term
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Definition
| different forms of the same gene |
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Term
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Definition
| individual having a nonidentical pair of alleles for a trait being studied |
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Term
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Definition
| the location for a specific gene on a chromosome |
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Term
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Definition
individual has a pair of dominant alleles
(AA) |
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Term
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Definition
| individual has a pair of recessive alleles (aa) |
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Term
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Definition
| individual has a pair of nonidentical alleles (Aa) |
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Term
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Definition
| refers to the particular alleles that an individual carries |
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Term
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Definition
| refers to an individual's observable traits |
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Term
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Definition
| first, cross of two homozygous parents to produce heterzygous F1 generation, then cross of two F1 offspring that are identically heterozygous for the two genes (Aa x Aa) |
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Term
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Definition
| the chance that each outcome of an event will occur is proportional to the number of ways in which the outcome can be reached |
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Term
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Definition
| constructing and filling in a diagram of all possible combinations of genotypes, phenotypes, or both |
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Term
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Definition
| cross between an organism of phenotypic dominance for a specific trait, and an organism that is homozygous recessive for the same trait to determine the genotype of the original organism |
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Term
| Mendel's theory of segregation |
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Definition
| diploid cells have pais of genes, on pairs of homologous chromosomes. the two genes of each pair are separated from each other during meiosis, so they end up in different gametes |
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Term
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Definition
| cross between two F1 heterozygous offspring concerning two traits (AaBb x AaBb) |
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Term
| Mendel's theory of independent assortment |
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Definition
| as meiosis ends, genes on pairs of homologous chromosomes have been sorted out for distribution into one gamete or another, independently of gene pairs on other chromosomes |
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Term
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Definition
| occurence of three or more alleles for a single gene locus among individuals of a population |
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Term
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Definition
| a case of alleles at a single gene locus having positive or negative impact on two or more traits |
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Term
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Definition
| interactions among products of two or more gene pairs (Labradors being yellow due to a separate allele) |
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Term
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Definition
| all the genes on one chromosome |
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Term
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Definition
| a range of small differences in the phenotypic expression of a trait within a population |
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Term
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Definition
| the inheritance of multiple genes that affect the same trait |
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