question archive In snapdragons, flower color is determined by two alleles, red and white
In snapdragons, flower color is determined by two alleles, red and white
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In snapdragons, flower color is determined by two alleles, red and white. The alleles demonstrate incomplete dominance: plants homozygous for the red allele (CR? ?CR? ?) have red flowers, plants homozygous for the white allele (CW? ?CW? ?) have white flowers, and heterozygous (CR? ?CW? ?) snapdragons have pink flowers. If a research scientist crosses two pink snapdragons, what should they expect the phenotypic ratio of the offspring to be?
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Incomplete dominance also known as partial dominance is a result cross of both parents with unique genetic make up resulting to progenies with intermediate phenotype. A cross between a homozygous parent of snapdragon wih white flowers (CWCW) and a homozygous parent with red flower (CRCR) will produce offsprings with pink flowers (CRCW). And if two pink snapdragons were crossed phenotypic ratio will be as follows: 1 CWCW (white): 2 CRCW (pink): 1 CRCR (red)
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