Chapter 11/12 Flashcards
Heterozygous
2 different alleles
Homozygous
Identical alleles
Phenotype
Physical expression
Genotype
Genetic makeup
Dominant
Allele that is always expressed when present
Recessive
Allele that does not produce an effect when found with a dominant allele
Incomplete dominance
When one allele is not completely dominant over another
Codominance
Occurs when phenotypes produced by both alleles are clearly expressed
Polygenic traits
Traits controlled by 2 or more genes
Antigens
Molecules that trigger an immune response
Pedigree
A chart that shows the pattern of inheritance of a particular trait according to familial relationships
Sex-linked trait
Gene located on the X chromosome
Karyotype
Shows the complete diploid set of chromosomes grouped together in pairs, arranged in order of decreasing size
Genome
The full set of genetic information that an organism carries in its DNA