Question

complete dominance incomplete dominance codominance answer bank a biological mother with type a blood and a biological father with type b blood have a daughter with type ab blood. a red snapdragon and a white snapdragon produce a pink snapdragon. a pea plant with all purple flowers and a pea plant with all white flowers produce a pea plant with all purple flowers. a moth with red wings and a moth with yellow wings produce a moth with orange wings. a white cow and a red bull have a calf that is white with red spots (roan colored).

Explanation:

• Complete dominance: In this case, one allele completely masks the effect of the other allele. For the pea plant example, the allele for purple flowers completely masks the allele for white flowers, so the offspring has all purple flowers.
• Incomplete dominance: Here, the heterozygous phenotype is an intermediate between the two homozygous phenotypes. For the snapdragon, the red and white alleles blend to produce a pink - colored flower (intermediate phenotype). For the moth, the red and yellow alleles blend to produce an orange - colored wing (intermediate phenotype).
• Codominance: Both alleles are expressed simultaneously in the heterozygote. For the blood type example, the A and B alleles are both expressed in the daughter with type AB blood. For the cow and bull example, the white and red alleles are both expressed in the roan - colored calf.

Answer:

• Complete dominance: A pea plant with all purple flowers and a pea plant with all white flowers produce a pea plant with all purple flowers.
• Incomplete dominance: A red snapdragon and a white snapdragon produce a pink snapdragon; A moth with red wings and a moth with yellow wings produce a moth with orange wings.
• Codominance: A biological mother with type A blood and a biological father with type B blood have a daughter with type AB blood; A white cow and a red bull have a calf that is white with red spots (roan colored).