Codominant, Incomplete Dominant, Multiple Alleles Interactive Slides Mendelian Genetics Complete the Punnett Square. Find probability of each phenotype in the offspring. In a cross between a heterozygous tall plant and a short plant, What is the probability of obtaining a tall plant? What is the probability of obtaining a short plant?
1) 1/4
2) 1/2
3) 3/4
4) 1/8
