| A | B | 
|---|
| XX | female | 
| XY | male | 
| XCY | normal male | 
| XcY | colorblind male | 
| XCXc | carrier female for colorblindess | 
| XcXc | colorblind female | 
| sex likned traits | hemophilia and colorblindness | 
| mutiple alleles | more than one gene pair controls the outcome, blood type is an example | 
| polygenic | many genes combining for ONE trait | 
| "true" hair, eye, skin color and height are ________  traits | polygenic | 
| how do you recognize a polygenic patter | many variations for a single trait | 
| slient mutation | a mistake in the DNA but the amino acid coded for remains the same | 
| frame shift | this type of mutation will cause the entire reading frame of codons to slide over to fill in the missing DNA, all the DNA sequences are now wrong | 
| this casues a frame shift | deletion | 
| nondisjunction | when entire whole chromosomes go the wrong way during meiosis anaphase |