| 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 |