Final answer:
The predicted phenotypes from the Punnett square can support the experimental results if they closely match the expected ratios. However, using fewer plants in the experiment or environmental factors can affect the outcome.
Step-by-step explanation:
The predicted phenotypes from the Punnett square are used to determine what the expected phenotypic ratios would be in an offspring population. If the observed phenotypes from the experiment match closely with the predicted ratios, then the results support the prediction. However, if the observed phenotypes deviate significantly from the predicted ratios, it suggests that there may have been some factors affecting the outcome.
If far fewer plants were used in the experiment, there is a higher chance of getting significantly different results due to the random segregation of alleles. With fewer plants, the random chance of inheriting each allele becomes more prominent, making it less likely to see the expected ratios. Additionally, experimental errors and environmental factors, such as wind, can also impact the results.