| A | B |
| polygenic | one trait governed by many genes |
| pleitropy | one gene many effects |
| epistasis | inheritance pattern in which one gene masks the expression of another gene that is at a different locus |
| codominance | both alleles are equal and fully expressed |
| ex of codominance | sicle cell and blood type |
| epigeonome | above genome |
| eugenome | true genome |
| polyploidy | more than 2 complete sets of chromosomes |
| aneuploidy | extra or missing chromosomes |
| aneuploidy is caused by | nondisjunction |
| nondisjunction happens when | homolgus chromosomes fail to separate during meosis I |
| nondisjunction also happens when | failure of daughter cells to separate duing meosis II |
| ex of autosomal nondisjuntion | downs, pataus, & edwards |