Mendel's Work

Heredity - the passing of physical characteristics from parents to offspring

Trait - each different from of a characteristic

Genetics - the study of heredity

Mendel's Experiments

Fertilization - fermentation of a new organism when egg + sperm join

Crossing Pea Plants

Purebred - Offspring of many genetics that have the same trait.

P Generation - Purebred Tall x Purebred Short

F1 Generation - Tall x Tall

F2 Generation - Tall Tall Tall Short

Dominant + Recessive Alleles

Genes & Alleles

Gene - factors that control a trait

Allele - different forms of a gene

Dominance Allele - is one whose trait always shows up in the organism when the allele is present

Recessive Allele - is hidden whenever the dominant allele is present

Alleles in Mendel’s Crosses

Hybrid - an organism that has two different alleles for a trait ; Tt

Purebred - an organism that hs two of the same alleles for a trait ; TT, tt

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