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Bio Genetics Review
Bio Genetics
Term | Definition |
---|---|
genetics | the study of how traits are inherited |
gene | segment of DNA, codes for trait |
allele | different forms of a gene |
examples of an allele | W=widow's peak; w=straight hair line |
genotype | alleles you have for a trait (letters) |
phenotype | trait you have |
dominant | only 1 copy of a gene needed to show that trait - hides the other |
recessive | 2 copies of gene needed - hidden by other dominant allele |
homozygous | 2 of the same alleles for a trait |
heterozygous | 2 different alleles for a trait |
example of a genotype | WW |
example of a phenotype | widow's peak hair line |
Gregor Mendel | famous author who studied principles of genetics |