the scientific method
Lab RepoRt assistant
This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.
obseRvations
Data Table 1: Punnett square.
Data Table 2: Seedling data.
Seedling Color
Green
Yellow
Total
Number of
Seedlings
Percentage of
Total
Data Table 3: Frequency calculations.
Frequency
Expected
Values
Actual Values
Green
Yellow
Total
Data Table 4: Corn kernel data.
Number of Kernels
Kernel Percentage
(Divide count by total, then multiply by 100)
Kernel Coloration
Purple
Yellow
Total
Kernel Texture
Smooth
Wrinkled
Total
Data Table 5: Punnet square for dihybrid cross.
Data Table 6: Data from corn kernels.
Number Counted
Ratio: Number counted / total Purple and smooth
Purple and wrinkled
Yellow and smooth
Yellow and wrinkled
TOTAL
Exercise 1: Observing a Monohybrid Cross
Questions
A. What are the predicted ratios of the phenotypes in the plants?
B. What was the total number of seeds that germinated?
C. What are the actual ratios of the phenotypes displayed in the tobacco plants?
D. Explain why it may be important to collect data from a larger population.
E. If all yellow seedlings were removed from the population, would the next generation still have a chance at
This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.
obseRvations
Data Table 1: Punnett square.
Data Table 2: Seedling data.
Seedling Color
Green
Yellow
Total
Number of
Seedlings
Percentage of
Total
Data Table 3: Frequency calculations.
Frequency
Expected
Values
Actual Values
Green
Yellow
Total
Data Table 4: Corn kernel data.
Number of Kernels
Kernel Percentage
(Divide count by total, then multiply by 100)
Kernel Coloration
Purple
Yellow
Total
Kernel Texture
Smooth
Wrinkled
Total
Data Table 5: Punnet square for dihybrid cross.
Data Table 6: Data from corn kernels.
Number Counted
Ratio: Number counted / total Purple and smooth
Purple and wrinkled
Yellow and smooth
Yellow and wrinkled
TOTAL
Exercise 1: Observing a Monohybrid Cross
Questions
A. What are the predicted ratios of the phenotypes in the plants?
B. What was the total number of seeds that germinated?
C. What are the actual ratios of the phenotypes displayed in the tobacco plants?
D. Explain why it may be important to collect data from a larger population.
E. If all yellow seedlings were removed from the population, would the next generation still have a chance at