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In snapdragons tallness (T) is dominant to dwarfness (t).
Red flowers are produced by RR and white flowers by rr but
the heterozygous Rr is pink. A dwarf red snapdragon is
crossed to a homozygous tall plant with white flowers. What
is the phenotypic ratio of the F1? the F2?
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Answer / sowjanya
dwarf, red snapdragon: ttRR * homozygous tall,white flowers
TTrr
F1: tR, Tr gametes
phenotypic ratio : 1:2:1
F2: TR, Tr, tR, tr gametes
9:3:3:1 .
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