Sunday, July 7, 2013
Lesson Sequence
The portion of the Third Nine Weeks content dealing with DNA and protein synthesis will be taught during the first semester at the beginning of the second nine weeks. For this reason the lesson plan also appears there.
Friday, May 11, 2012
Monday, May 23, 2011
Genetics Terms
genotype - the two genes a person receives for a trait. They are represented by letters.
phenotype - physical trait such as blue eyes, widow's peak, type A blood, etc.
dominant - the gene that is expressed if present. It masks the recessive gene
recessive - the gene that is masked by the dominant. The only way for it to be expressed is for two recessive genes to be present in the genotype
homozygous - both genes in the genotype are the same such as AA or aa
heterozygous - two different alleles in the genotype such as Aa
allele - different forms of a gene. A is the dominant allele while a is the recessive allele.
phenotype - physical trait such as blue eyes, widow's peak, type A blood, etc.
dominant - the gene that is expressed if present. It masks the recessive gene
recessive - the gene that is masked by the dominant. The only way for it to be expressed is for two recessive genes to be present in the genotype
homozygous - both genes in the genotype are the same such as AA or aa
heterozygous - two different alleles in the genotype such as Aa
allele - different forms of a gene. A is the dominant allele while a is the recessive allele.
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