unit 5 Genetics
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15 terms
Terms | Definitions |
|---|---|
 allele | form of a gene |
| gene | part of the DNA molecule |
| dominant | trait displayed, capitol letter |
| recessive | trait that is masked, lower case letter |
| homozygous | same letters(bb, BB) |
| heterozygous | different letters (Bb) |
| purebreed | same letters(bb, BB) |
| hybrid | same letters(bb, BB) |
| genotype | the letters (BB, Bb, bb) |
| phenotype | way it looks (small, big) |
| codominance | equally dominant traits, 2 capital letters, shows blending (RR, RW, WW) |
| bloodtyping | 3 alleles, ABO, AB codominant, O recessive |
| sex-linked traits | traits on the X chromosome, not Y |
| pedigrees | map out traits through several generations |
| karyotype | chromosomal map to determine genetic disease |
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