Question

In flowers, red petals are dominant over white petals, green leaves are dominant over silver leaves, and black centers are dominant over yellow centers. You cross a red petaled, silver leaved, yellow centered plant with a red petaled, green leaved, black centered plant. Each of theplants had one parent that had white petals, silver leaves and yellow centers. What are the genotypic and phenotypic ratios in the offspring?

Answer 1

In the offspring of a cross between a red petaled, silver leaved, yellow centered plant and a red petaled, green leaved, black centered plant, the phenotypic ratio will be 100% red petaled, green leaved, black centered. The genotypic ratio will be 100% heterozygous.

Step-by-step explanation:

The genotypic and phenotypic ratios of the offspring can be determined using the principles of Mendelian genetics. The red petalled, silver leaved, yellow centered plant would have the genotype RRssyy, and the red petaled, green leaved, black centered plant would have the genotype RRSSYY. If we cross these, the offspring's genotype will be RrSsYy. The phenotypic ratio would be 100% red petaled, green leaved, black centered because these are the dominant traits. The genotypic ratio would be 100% heterozygous (Rr:Ss:Yy).

Learn more about Mendelian genetics