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Biology Ch. 7
| Question | Answer |
|---|---|
| Incomplete dominance | heterozygous phenotype that is a blend of the two homozygous phenotypes |
| Codominance | heterozygous genotype that equally expresses the traits from both alleles |
| Polygenic trait | trait that is produced by two or more genes |
| Carrier | organism whose genome contains a gene for a certain trait or disease that is not expressed in an organism's phenotype |
| Sex-linked gene | gene that is located on a sex chromosome |
| X chromosome inactivation | process that occurs in female mammals in which one of the X chromosomes is randomly turned off in each cell |
| Linkage map | diagram that shows the relative locations of genes on a chromosome |
| Pedigree | chart of the phenotypes and genotypes in a family that is used to determine whether an individual is a carrier of a recessive allele |
| Karyotype | image of all the chromosomes in a cell |