Biology Ch 12
Terms
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- carrier
- an individual heterozygous for a particular trait
- fetus
- developing mammal from 9 weeks to birth
- karyotype
- chart of metaphase chromosomes arranged according to length and location of the centromere
- codominant allele
- pattern where the phenotypes of both homozygous parents are produced in heterozygous offspring where both alleles are equally expressed
- incomplete dominance
- inheritance pattern where the phenotype of a heterozygote is intermediate between those of the parents
- multiple alleles
- presence of more than two alleles for a trait
- autosome
- pairs of matching homologous chromosomes in somatic cells
- pedigree
- graphic representation of genetic inheritance used to map traits
- polygenic inheritance
- inheritance pattern of a trait controlled by 2 or more genes
- sex chromosomes
- in humans, the 23rd pair of chromosomes
- sex-linked traits
- traits controlled by genes on the sex chromosomes