Term
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Definition
| Chromosomes other than the sex chromosomes. |
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Term
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Definition
| Situation in which both alleles are fully expressed and show themselves clearly in the phenotype of the heterozygote. |
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Term
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Definition
| The production of a wild-type phenotype in dihybrid offspring of two recessive mutant parents due to completion in the offspring of a biochemical or developmental pathway. |
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Term
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Definition
| A cross to determine whether two different recessive mutations occur in the same gene or in different genes. |
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Term
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Definition
| Pattern of inheritance associated with genes carried in mitochondria and chloroplasts. |
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Term
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Definition
| Mechanism by which gene activity from the X chromosome(s) is equalized in males and females. |
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Term
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Definition
| Refers to heritable changes in gene expression that are not due to changes in DNA sequences. |
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Term
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Definition
| Situation in which a genotype at one gene pair alters the expression of genotypes at another gene pair. |
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Term
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Definition
| Extent to which a given genotype is expressed phenotypically. |
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Term
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Definition
| Situation in which genes at different loci influence development of a trait. |
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Term
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Definition
| Condition in which a gene is present in a single copy in a diploid organism. |
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Term
| Maternal effect inheritance |
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Definition
| Situation in which the phenotypes of offspring are determined by the genotype of the mother. |
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Term
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Definition
| A characteristic that results from multiple genetic and environmental factors that interact to determine a phenotype. |
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Term
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Definition
| Situation in which more than two alleles exist in a population. |
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Term
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Definition
| Range of phenotypes produced by a given genotype under different environmental conditions. |
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Term
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Definition
| The percentage of individuals of a given genotype that actually express the associated phenotype. |
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Term
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Definition
| Producing a mutant phenotype without mutation by manipulating the cell environment. |
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Term
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Definition
| Situation in which expression of an allele of a single gene affects more than one aspect of the phenotype. |
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Term
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Definition
| A quantitative trait that is controlled by two or more genes. |
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Term
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Definition
| Chromosomes that differ in the two sexes of a species and are involved in sex determination. |
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Term
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Definition
| A trait in which dominance is reversed between the sexes. |
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Term
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Definition
| A trait that is only expressed in one sex. |
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Term
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Definition
| Mode of inheritance of a gene that is located on the X chromosome but not on the Y chromosome. |
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Term
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Definition
| Differential expression of an allele depending on whether it was inherited from the mother or from the father. |
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Term
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Definition
| Situation in which the phenotype of a heterozygote is intermediate between the two homozygotes. |
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