Answer:
The differences observed between the expected and experimental phenotype is purely due to chance.
Explanation:
First, there is need to check if the expected and observed outcome are significantly different using chi square.
Observed phenotypes expected phenotype
purple smooth 75 9/16 x 135 = 75.94
white smooth 28 3/16 x 135 = 25.31
purple wrinkled 24 3/16 x 135 = 25.31
white wrinkled 8 1/16 x 135 = 8.44
Chi square = [tex](observed frequency - expected frequency)^2/expected frequency[/tex]
for purple smooth = [tex](75 - 75.94)^2/75.94[/tex] = 0.012
white smooth = [tex](28 - 25.31)^2/25.31[/tex] = 0.29
purple wrinkled = [tex](24 - 25.31)^2/25.31[/tex] = 0.052
white wrinkled = [tex](8 - 8.44)^2/8.44[/tex] = 0.023
Total chi square = 0.377
Degree of freedom = 4 - 1 = 3
Tabulated chi square at 95%, 3 df = 3.81
Hence, there is no significant difference between the expected and the observed outcome. The differences observed in the phenotype is purely due to chance.
