The correct answer is 1 red : 2 pink : 1 white
The phenotypic ratio refers to the proportion of offspring that exhibit a certain characteristic or set of traits. A test cross can be used to ascertain the frequency of a trait or trait combinations that will manifest themselves based on the genotypes of the progeny. A phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another. The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism. A phenotypic ratio compares an organism's potential outcomes depending on its outward appearance.
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