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Chapter 7 Vocab
Chapter 7: Extending Medelian Genetics
| Term | Definition |
|---|---|
| Carrier | does not show disease symptoms but can pass on the disease-causing allele to offspring |
| Sex-Linked Gene | genes that are located on the sex chromosomes |
| X Chromosome Inactivation | when one of the two X chromosomes is randomly “turned off |
| Incomplete Dominance | a heterozygous phenotype is somewhere between the two homozygous phenotypes |
| Codominance | both traits are fully and separately expressed |
| Polygenic Trait | traits produced by two or more genes |
| Linkage Map | maps of the relative locations, or loci, of genes on a chromosome. |
| Pedigree | helps trace the phenotypes and genotypes in a family to determine whether people carry recessive alleles. |
| Karyotype | a picture of all the chromosomes in a cell |