Wednesday, September 21, 2016

Co-Dominance And Incomplete Dominance?

Incomplete dominance: a dominant phenotype is not expressed even though the individual carries a dominant allele
Co-dominance: where the 2 alleles forming the genotype are fully and equally expressed


Both Incomplete dominance and codominance are types of no dominance
1. Incomplete dominance: when a dominant phenotype is not expressed even though the individual carries a dominant allele(not fully dominant) instead a phenotype intermediate is formed between the homozygous dominant and recessive, not a specific allele is expressed over its paired allele AA x aa : Aa phenotype is not equal AA
Example: antirrhinum flowers

2. Codominance: where the alleles forming the phenotype are fully and equally expressed both the alleles forming the genotype are present.
In codominance an additional phenotype is formed however both alleles are expressed completely
Example:mosaic of red and white color of camellia flowers





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