Question

1. A geranium from a true-breeding line with red flowers and hairyleaves (line A) is crossed to a geranium from a true-breeding linewith white flowers and smooth leaves (line B). The resultingoffspring, the F1, are all pink-flowered, with hairy leaves.

i) (three points) Suppose an individual from the F1 is crossedto an individual from line B. The resulting offspring, 1000individuals, are scored for flower traits. 249 have pink flowersand smooth leaves, 251 have pink flowers and hairy leaves, 253 havewhite flowers and smooth leaves, 247 have white flowers and hairyleaves. What type of allelic interactions are these? How many lociare involved? Are there multiple possibilities? Diagram a crossconsistent with the data.

ii) List and discuss several traits, in domestic plants of yourchoosing, that have a similar genetic basis.