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2 Hereditary

2 Hereditary - Genetics is the science of hereditary A...

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Genetics is the science of hereditary
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A difference of heredity
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Experimental genetics began in an abbey garden Stamen Carpel
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Mendel crossed pea plants that differed in certain characteristics and traced the traits from generation to generation 1 Removed stamens from purple flower White Stamens Carpel Purple PARENTS (P) OFF- SPRING (F 1 ) 2 Transferred pollen from stamens of white flower to carpel of purple flower 3 Pollinated carpel matured into pod 4 Planted seeds from pod
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Mendel studied seven pea characteristics FLOWER COLOR FLOWER POSITION SEED COLOR SEED SHAPE POD SHAPE POD COLOR STEM LENGTH Purple White Axial Terminal Yellow Green Round Wrinkled Inflated Constricted Green Yellow Tall Dwarf
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Genotypes Phenotypes Heterozygote Dominant vs. vs. Homozygote Recessive
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Chromosomes bear two alleles for each characteristic GENE LOCI Pa B DOMINANT allele RECESSIVE allele b GENOTYPE: PP aa Bb HOMOZYGOUS for the dominant allele HOMOZYGOUS for the recessive allele HETEROZYGOUS
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2 Hereditary - Genetics is the science of hereditary A...

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