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Rachel's Summer Bio
Ch. 12 Review
| Question | Answer |
|---|---|
| character | physical features that are inherited; trait |
| trait | one of several forms of character; color, size, etc |
| hybrid | offspring of a cross between contrasting traits |
| generation | a group of offspring from a given group of parents |
| allele | one or two alternate versions of genes |
| dominant | an allele that is fully expressed |
| recessive | an allele that is expressed when there is no dominant allele |
| genotype | the set of alleles that an individual character has for a character; genotype determines phenotype |
| phenotype | a trait that results from a genotype; the one that shows |
| homozygous | two identical alleles of a gene |
| heterozygous | two different alleles of a gene |
| punnett square | shows genotypes that could result from a cross |
| probability | the likelihood that a specific event will occur; can be used to predict the probabilities that specific alleles will be passed on to offspring |
| pedigree | family history that shows how a trait is inherited over several generations |
| genetic disorder | a disease or disorder that is inherited |
| polygenic character | a character influenced by one or more gene |
| codominance | both alleles for the same gene are expressed; both show |
Created by:
cherylann312
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