2. If 320 F2 offspring resulted from this F1 cross, how many would be green? White?
To determine the number of green and white offspring from an F1 cross, we need to know the phenotypic ratio of the F1 generation, which is the first generation resulting from the cross between two parental organisms. Unfortunately, the phenotypic ratio is missing from your question. However, I can guide you on how to calculate the number of green and white offspring if you have the phenotypic ratio for the F1 generation.
Here's how you would solve it:
1. Determine the phenotypic ratio of the F1 generation from your available information. For example, if the phenotypic ratio is 3:1 (3 green:1 white), you can deduce that 3/4 of the F1 offspring will be green, and 1/4 will be white.
2. Apply the ratio to the total number of F2 offspring (320 in this case). Let's assume the ratio is 3:1.
To find the number of green offspring:
Number of green offspring = (3/4) * Total number of F2 offspring
Number of green offspring = (3/4) * 320 = 240
To find the number of white offspring:
Number of white offspring = (1/4) * Total number of F2 offspring
Number of white offspring = (1/4) * 320 = 80
So, if the phenotypic ratio is 3:1, there would be 240 green and 80 white offspring out of the 320 F2 offspring.
Please make sure to provide the phenotypic ratio of the F1 generation to accurately determine the number of green and white offspring.