• Mendel’s experiments only looked at traits in which only one of the alleles is expressed
COMPLETE DOMINANCE
F1 x F1
Second Generation
(F2)
Homozygous dominant = purple
Homozygous recessive = white
Heterozygous = lavender
• Mendel’s experiments only looked at traits in which only one of the alleles is expressed
COMPLETE DOMINANCE
Incomplete dominance: a situation where neither allele dominates the other and both exercise an influence on the individual; results in partial expression of both traits.
F1 x F1
Second Generation
(F2)
Homozygous dominant = purple
Homozygous recessive = white
Heterozygous = purple and white speckled
• Mendel’s experiments only looked at traits in which only one of the alleles is expressed
COMPLETE DOMINANCE
Incomplete dominance: a situation where neither allele dominates the other and both exercise an influence on the individual; results in partial expression of both traits.
Codominance: A situation where both alleles are expressed fully to produce offspring with a third phenotype
White (recessive) Red (dominant)Roan
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