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Genotype and Phenotype Allele from male parent Gene for fur color Allele from female parent Gene for fur color ff FF homozygous homozygous P Parent generation purebred Parent Homozygous FF F F f F f F f f Ff F f Homozygous ff Parent F1 Filial Generation 1 Phenotype Genotype Ff Genotype Ff Genotype Ff Genotype Ff Phenotype Heterozygous Ff Heterozygous Ff F f F F F F f f Ff f f F2 Filial Generation 2 FF Ff Ff ff Yellow corn and white corn diagram Does not have Has gene to make yellow color Gene to make yellow color 2 copies of gene If either allele has the code For making the yellow color, The corn is yellow. Yellow is dominant. You can use capital Y for the label. YY Yy Parent YY Crosspollination Parent yy Y Y y Y y Yy y Yy Yy F1 Generation Yy Yy Yy Yy Yy Parent Y Yy Parent y Y Y Y Yy y Yy y y F2 Generation YY Yy Yy yy Quiz What is the genotype? What is the phenotype? White Quiz What is the phenotype? What is the genotype? aleurone The aleurone is a coating over the corn kernel. If the aleurone is purple it masks the color of the inside of the kernel. Figure out if the gene for purple is dominant or recessive. P Parent generation Homozygous Purple aleurone Homozygous Clear aleurone Purple Clear F1 Filial Generation 1 Parent Purple aleurone Purple Clear Parent Clear aleurone Clear Purple PP Parent Crosspollination Purple aleurone P P p P p Pp p Pp pp Parent Clear aleurone Pp Pp Purple aleurone Pp Purple aleurone Parent Purple aleurone P Parent Purple aleurone p P P P Pp p Pp pp F2 Generation PP Pp Pp pp
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