* Genomics
+ allele - variation of gene
+ heterozygous - two different allelese
+ phenotype - physical expression of gene

+ autosomal recessive inheritance - two copies of the recessive allele required
+ carrier = heterozygous

** Example:
Albinisim is recessive

Given two heterozygotes' offspring, predict ratio of normal-pigmented to albino

|   | A  | a  |
| A | AA | Aa |
| a | Aa | aa |