Raddish genetics part : Analyze F1 Results and Document F2 seedlings

Students submit short-answer responses to questions as a "test" on Blackboard:

• Look at your personal results for the coloration of the F1 stems. Also, for comparison, look at the results of your classmates using the Padlet images and the results in the top yellow box on the shared Google spreadsheet. Describe the pattern here (1 - 2 sentences).
• Recall that F1 seedlings have one gene version (allele) from each parent. Also, recall that the dominant allele is defined as the one that is expressed (observed) in individuals that have two different gene copies. The recessive allele is defined as the one that is not expressed (observed) in individuals that have two different gene copies. Given this, which allele appears to be dominant, and which appears to be recessive? Provide evidence for your answer from the results. (1 - 2 sentences)
• Is there evidence from your dish or your classmates dishes that there are exceptions - seedlings whose stems are not of the expected color? If so, give at least one plausible explanation of why those exceptions may have occurred.

Students enter their data for stem coloration on a shared spreadsheet - Excel on OneDrive or Google.

Link to Padlet to upload photos

Upload a photo of F2 dish with germinated seedlings. Make sure to use an angle and background such that the seedlings appear clearly in the photograph. It may work best to put the dish flat on a solid color sheet of paper and remove the lid prior to photographing.

[Note to instructors - students upload images of seedlings on Padlet; this allows them to see their classmates work. Also if students enter wonky information into the shared spreadsheet, classmates and the instructor can see/correct the error.]