Answer:
The phenotype ratio of HhGg x HHGg is 9:3:3:1.
Step-by-step explanation:
The phenotypic ratio is concerned with the relative number of the offspring man manifesting a particular trait or combination of traits. It can be determined by making test cross and then finding the frequency of the traits.
phenotype ratio of HhGg HHGg is a different di-hybrid cross. One 'g' will be combined with the one 'h'. In result the huge will be dominant that of small and green will be dominant to that of blue.
HhGg × HhGg ( huge/green × huge/green)
From the below stated table we can conclude the ratio which is like huge/green =9,
Small/green = 3,
huge/blue=3,
small/blue = 1.
Hence it is proved that the phenotypic ratio will be 9:3:3:1.