| A | B |
|---|
| gamete | reproductive cells |
| zygote | fertilized egg |
| multiple allele | more than two forms of genes |
| polygenic trait | human traits controlled by # of genes |
| sex linked | gene carried on X & Y chromosome |
| sex influenced | caused by differing in male & female |
| amniocentesis | removal of fluid surrounding embryo |
| chorionic villus biopsy | sample of embryo cells is removed |
| gene | trait passed down from parent cells |
| X chromosomes | completely female |
