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Biology Vocab
Chapter 7
Term | Definition |
---|---|
Carrier | Organism whose genome contains a gene for a certain trait or disease that is not expressed in the 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/ |
Incomplete Dominance | Heterozygous phenotype that is a blend of the two homozygous phenotype. |
Codominance | Heterozygous genotype that equally expresses the traits from both alleles. |
Polygenic Trait | Trait that is produced by two or more genes. |
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 indivdual is a carrier of a recessive allele. |
Karyotype | Image of all of the chromosomes in a cell. |