| A | B |
|---|
| sex linkage | the coupling of certain genes to one sex chromosome, X or Y, but not the other |
| gene | a hertiable factor that controls a specific characteristic |
| allele | one specific |
| genome | the whole genetic code or information of an organism |
| gene mutation | a change in a nucleotide sequence of the DNA in genes that ultimately creates genetic diversity |
| homologous chromosomes | two chromosomes that correspond in proportio, vale, staining pattern, and structure: meaning that they contain the correspnding genes for the same traits |
| genotype | the alleles possessed by an organism |
| phenotype | characteristics of an organism |
| dominant allele | allele that has the same effect on the phenotype whether it is present in the homoxygous or heterozygous state |
| recessive allele | an allele that only has an effect on the phenotype when present in the homozygous state |
| codominant alleles | pairs of alleles that both affect the phenotype when present in the heterozygous state |
| locus | particular position on the homologous chromosomes of a gene |
| homozygous | two identical alleles of a gene |
| heterozygous | two different alleles of a gene |
| state two examples of sex linkage | color-blindness and hemophilia |
| genetic screening | the testing of an individual for the presence or absence of a gene |
| clone | a group of genetically identical organisms |
| Punnett Square | http://www.quia.com/files/quia/users/conklinj9/bobobobbobobob.bmp |
| Pedigree Chart | http://www.quia.com/files/quia/users/conklinj9/peepe.bmp |
