Pleiotropy
the many effects of a particular gene; multiple symptoms of inherited disorders
Epistasis
one gene affects the expression of a gene at another location
Polygenic
multiple genes influence the expression of a single phenobarbitalstype
Nondisjunction
the failure of homologous chromosomes to separate during gamete formation/meisosi
Monosomy
loss of an autosome - lethal
Trisomy
gain of an autosome - mostly lethal
Law of Segregation
each individual has 2 factors for every characteristic; separate when gametes are formed
Law of Independent Assortment
alleles for different characters - separate independently of each other during gamete formation
principle of genes
discrete factors that determine characteristics
principle of dominance
one form of gene/allele is dominant