4. Purebred red-flowered plants were crossed withpurebred white-flowered plants.

Question

4. Purebred red-flowered plants were crossed withpurebred white-flowered plants. The resultant F1 generation wereall pink-flowered. When the pink-flowered plants were crossed toeach other, the F2 generation had a ratio of 1 red: 2 white: 1pink. This situation represents:: *

Incomplete Dominance

Codominance

Meiotic recombination

Inhibition

Please respond to the question above.

4. Purebred red-flowered plants were crossed withpurebred white-flowered plants. The resultant F1 generation wereall pink-flowered. When the pink-flowered plants were crossed toeach other, the F2 generation had a ratio of 1 red: 2 white: 1pink. This situation represents:: *

Incomplete Dominance

Codominance

Meiotic recombination

Inhibition

Please respond to the question above.

Explanation / Answer

Incomplete Dominance is a heterozygous genotype that creates an intermediate phenotype. A cross of two intermediate phenotypes will will result in the reappearance of both parent phenotypes and the intermediate phenotype. There is a 1:2:1 phenotype ratio instead of the 3:1 phenotype ratio found when one allele is dominant and the other is recessive.

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