(a) TTWW
(b) TTww
(c) TtWW
(d) TtWw
Correct answer – (c)
A.TtWW might be the genetic makeup of the tall parent.
B.Since half the progenies are short, this implies that the parent plant also will have a collection of short genes; all progenies bore violet flowers, further suggesting that violet color is dominant over white.