Sexual Reproduction in Flowering Plants

Topics in this chapter

• Flower Reproductive Structures
• Microsporogenesis and Pollen Development
• Megasporogenesis and Embryo Sac
• Pollination Agents and Mechanisms
• Pollen-Pistil Interaction and Fertilization
• Post-Fertilization Seed and Fruit Development
• Apomixis, Polyembryony and Artificial Hybridization

Cheat sheet

Practice questions

1. Question 1Q-43AAF8

   Which floral whorl occupies the innermost, central position on the receptacle (thalamus)?

   1. A.Gynoecium (Pistil / Carpels)
   2. B.Androecium (Stamens)
   3. C.Corolla (Petals)
   4. D.Calyx (Sepals)
   See the answer and solution
2. Question 2Q-590B5C

   In artificial hybridization techniques, the surgical removal of anthers from a bisexual flower bud prior to pollen dehiscence is called -

   1. A.Emasculation
   2. B.Bagging
   3. C.Re-bagging
   4. D.Vernalization
   See the answer and solution
3. Question 3Q-751C21

   The floral condition in which anthers and stigma within a flower mature simultaneously is termed -

   1. A.Homogamy
   2. B.Dichogamy
   3. C.Herkogamy
   4. D.Cleistogamy
   See the answer and solution
4. Question 4Q-756491

   Which set of floral traits typically characterizes insect-pollinated (entomophilous) flowers?

   1. A.Large, brightly colored petals, rich in nectar, with pleasant fragrance
   2. B.Small, dull green flowers producing vast quantities of dry, light, non-sticky pollen
   3. C.Feathery stigmas protruding outside non-fragrant petals
   4. D.Colorless petals producing no nectar or scent rewards
   See the answer and solution
5. Question 5Q-7A79C0

   Which of the following crop plants produces unisexual flowers, where staminate and pistillate flowers occur on distinct male and female plants?

   1. A.Papaya (Carica papaya)
   2. B.China rose (Hibiscus rosa-sinensis)
   3. C.Mustard (Brassica nigra)
   4. D.Pea (Pisum sativum)
   See the answer and solution