January 19, 2011

Monohybrid Cross and Punnett Square

1.      In garden pea, green pod is dominant over yellow pod. If heterozygous green pod undergone self-pollination, find the phenotypic ratio (P.R.) and genotypic ratio (G.R.) and the percentage of their offspring.

                        *Garden Pea :   green pod – Dominant = GG         
                                               yellow pod – Recessive = gg
                                                                       Hybrid = Gg

                        *heterozygous green pod = Gg
                        *(self-pollination) heterozygous green pod = Gg

Share |