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Genetic Vocab Review
| Term | Definition |
|---|---|
| Homozygous | having two identical alleles of a particular gene or genes. AA or aa |
| Heterozygous | having two different alleles of a particular gene or genes. Aa |
| Dominant | The stronger trait that is expressed. Represented with a capital letter. |
| Recessive | The weaker trait that is not expressed. Represented with a lower case letter. |
| Pedigree | a chart that shows the inheritance of a trait over several generations. (a family tree) |
| Punnett Square | a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. |
| Autosomal Dominant | a way a genetic trait or condition can be passed down from parent to child. |
| Autosomal Recessive | a trait, disorder, or disease can be passed down through families- but must have 2 (both) copies of the gene to be expressed. |
| Sex linked trait (x-linked) | a trait where a gene is located on the X chromosome. |
| Carrier | an individual who carries and is capable of passing on a genetic mutation associated with a disease and may or may not display disease symptoms. |
| blank circle in pedigree | circle represents a female in the pedigree without the trait |
| blank square in pedigree | square represents a male in the pedigree without the trait |
| shaded circle in pedigree | circle represents a female in the pedigree with the trait expressed |
| shaded square in pedigree | square represents a male in the pedigree with the trait expressed |
Created by:
mdenson10
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