Butler 1
Exception
Definition
Example
Multiple Alleles
there are three or more
forms of a gene for a trait
a relationship between two
alleles of a gene
form of intermediate
inheritance in which one
allele for a specific trait is
not completely dominant
over the other allele
Alleles that cause an
organism to die only when
present in homozygous
condition
one gene influences
multiple phenotypic traits
Environmentally induced
phenotype mimicking one
usually produced by a
specific genotype.
the quality of being diverse
and not comparable in kind
phenomenon in which the
expression of one gene
depends on the presence of
one or more "modifier
genes."
the percentage of
individuals with a given
genotype who exhibit the
phenotype associated with
that genotype
variations in a phenotype
among individuals carrying
a particular genotype.
Blood types- A, B, O, AB
Codominance
Incomplete Dominance
Lethal Allele Combinations
Pleiotropy
Phenocopy
Heterogeneity
Epistasis
Penetrance
Expressivity
Blood type- AB
Curly hair gene
Cystic Fibrosis
PKU
Vanessa genus of
butterflies
retinitis pigmentosa
Body mass index
Breast Cancer
Marfan Syndrome