you inspect an ear of corn and find the following number of kernels: 461 purple and starchy, 142 purple and sweet, 156 yellow and starchy, 53 yellow and sweet. what genotypes and phenotypes did the parent corn plants probably have? Make sure you support you answer with a punnet square. (you can make a google docs for the punnet square and copy and paste into your answer.)

The phenotype of parents could be  PpSs  and ppss ie purple sweet or yellow and starchy

The genotype of the parents could be PpSs, ppss and PpSs

Explanation:

In corn kennel purple is dominant to yellow

sweet is dominant to starchy

Purple PP, Yellow pp

Sweet SS, starchy ss

Since the organism obtained have all 4 traits, it is concluded that genotype of parent is heterozygous.

From the punnet square,

      PS        Ps         pS        ps

PS PPSS   PPSs     PpSS    ppss

Ps  PPSs   PPss       PPSs   Ppss

pS  PpSS  PpSs      ppSS     ppss

ps PpSs    Ppss       ppSS     ppss

genotype ratio is 4:1:1:2

phenotype ratio is 8:3:3:2

The phenotypic ratio observed shows near similarity to experimental observation.