Question
The chapter's exercise about tall pea plants with violet flowers crossed with short plants with white flowers, giving all-violet F1 with about half short, implies the tall parent's genotype for height and flower colour was
Detailed Explanation
Since almost half the progeny were short (recessive) while all were violet (dominant, fixed), the tall parent must be heterozygous for height (Tt) but homozygous dominant for flower colour (WW), giving genotype TtWW.