28. regions of the United States. The flower is nor is found The following data

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28. regions of the United States. The flower is nor is found The following data were obtained after several crosses. The tiny blue eyed Mary flower s often one of the frst fowers seen in the spring in sotipn mally blue, but sometimes a white or pink flower variation PARENTS Blue x white Blue x pink All blue F1 All blue F2 e196 blue, 63 white 149 blue, 52 pink Pink x white 226 blue, 98 white, 77 pink All blue Which of the following statements best explains the data? A. The appearance of blue in the F1 generation of the pink and white cross demonstrates that flower color is not an inherited trait but is determined by the environment. Flower color depends on stages of flower development, and young flowers are white, advancing to pink and then blue. B. C. Since the F1 and F2 phenotypes of the pink and white cross do not fit the expected genotypic and phenotypic ratios, blue-eyed Mary must reproduce by vegetative propagation D. Flower color is an inherited trait, and the F1 and F2 phenotypes of the flowers arising from the pink and white cross can best be explained by another gene product that influences the phenotypic expression.

Explanation / Answer

Ans. D.

Flower colour is an inherited trait, and the F1 and F2 phenotypes of the flowers arising from the pink and white cross can best be explained by another gene product that influences the phenotypic expression.

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