A) 1 : 1
B) 2 : 1
C) 3 : 1
D) 1 : 2 : 1
Correct Answer: D
Solution :
The snapdragon (Antirrhinum majus) and 40 clock plant (Mirabilis jalapd) provide a good example of incomplete dominance. When a homozygous red-flowered snapdragon or 40 clock plant is crossed with a homozygous white-flowered snapdragon or 40 clock plant, they produce \[{{F}_{1}}\] -progeny of pink-flowered heterozygotes. The \[{{F}_{1}}\] heterozygotes produce the \[{{F}_{2}}\] -progeny with identical phenotypic and genotypic ratios of 1 : 2 : 1.
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