2 What are traits? Physical Traits Acquired Traits Behavioral Traits Can be seen by othersEye color, hair color, height, left handedAcquired TraitsLearned skillsPlaying a sport, riding a bike, playing a musical instrumentBehavioral TraitsInstinctual actionsNest building and migration
3 Review Terms Used in Modern Genetics GenotypeThe particular alleles (genes) an individual carriesThey are inherited from your biological parentsGenes control your traitsPhenotypeAn individual’s observable traitsWhat people can SEE when they look at you
4 Review Terms Used in Modern Genetics An individual with non-identical alleles of a gene is heterozygous for that geneExamples: Bb, Tt, AaAn individual with identical alleles of a gene is homozygous for that geneExamples: BB or bb, TT or tt
5 Terms Used in Modern Genetics An allele is dominant if its effect masks the effect of a recessive allele paired with itCapital letters (A) signify dominant alleles; lowercase letters (a) signify recessive allelesHomozygous dominant (AA)Homozygous recessive (aa)Heterozygous (Aa)
6 What traits do you have?We will go through the most common traits that people haveOn your sheet, record if you have the mentioned trait or notYou may have to ask your neighbor for help
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