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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Heterozygous |
a pair of genes where one is dominant and one is recessive |
pair of genes |
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Principle of independent assortment |
how different genes independently separate from one another when reproductive cells develop. |
how genes separate. |
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Incomplete dominance |
a genetic situation in which one allele does not completely dominate another allele |
creates new phenotype |
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Co-dominance |
relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. |
Double dominance/both dominant |
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Multiple Allels |
allele of a genetic locus having more than two allelic forms within a population. |
more than one allel |
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Polygenic inheritance |
inheritance of a phenotypic characteristic (trait) that is attributable to two or more genes and can be measured quantitatively |
inheritance of a phenotypic trait |
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Linked Genes |
genes are close together on the same chromosome, they do not assort independently and are said to be linked. |
two genes linked together |
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x-linked genes |
the gene causing the trait or the disorder is located on the X chromosome. |
gene on x chromosome |
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Nondisjunction |
failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during nuclear division |
results in abnormal distribution of chromosomes. |
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Multifactorial/Quantitative Traits |
characteristics that vary in degree and can be attributed to polygenic effects |
product of two or more genes, and their environment. |
