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Ideal Biology Practical Hand Book — Xit, , Androeci: :, “mm = Stamens-6 in two whorls (2 + 4), polyandrous, tetradynamous,, a 2 outer short and 4 inner long, dithecous., Gynoeci > Bicarpellary, syncarpous, style short, stigma bilobed., , , , Bos ll, , Complete flower Sepals Petals, , Fig. 2, Floral parts of Brassica (Mustard), , , , , , , , (1) Define flower:, Ans: A flower is a highly modified, condensed, reproductive shoot in Angiosperms., (2) What is the function of flower?, Ans: A flower is the reproductive organ in plants. It possesses male and female sex ;, organ for sexual reproduction., (3) Which are the essential floral whorls?And why? ., Ans: Essential floral whorls include Androecium and Gynoecium. They produce, the male and female gametophytes for sexual reproduction., (4) What is the difference between polypetalous and gamopetalous corolla?, Ans: A corolla is said to be polypetalous when the petals are free. It is gamopetalous, when the petals are united/fused., (5) Which are the different parts of stamen and carpel?, Ans: A stamen consists of two parts - filament and anther., A carpel consists of three parts - ovary, style and stigma., (6) How does Brassica flower is different from that of Hibiscus?, , , , , , , , , , Ans: Brassica Hibiscus, Tetramerous symmetry Pentamerous symmetry, Stamens 6 Stamens numerous, Ovary-Bicarpellary Ovary pentacarpellary, , Axile placentation, , , , , , Parietal placentation, , , , , , , , , , , , Eloval Formula for Brassica , ©, EF Koil, Aosxh G@ Paricta.