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Bio Chapter 7

TermDefinition
Carrier In biology, an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition
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 A condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully
Codominance A condition in which both alleles for a gene are fully expressed
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 A diagram that shows the occurrence of a genetic trait in several generations of a family
Karyotype Image of all of the chromosomes in a cell
Created by: mariazierolf
 

 



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