Chapter – 1.2 Sexual Reproduction in Flowering Plants

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Across
  1. 2. Which structure encloses the embryonal axis at its lower end including the radical and root cap?
  2. 6. At what stage, pollen grains are shed in majority of flowering plants?
  3. 7. In which layer of a pollen grain, prominent apertures are formed?
  4. 9. What is the main function of filiform apparatus present in synergids?
  5. 10. In banana, fruit develops without fertilization. Such a fruit is called …….....………… fruit.
  6. 11. Which type of pollination is genetically similar to autogamy?
  7. 14. In which region of the nucellus, ovules generally differentiate a single Megaspore Mother Cell (MMC)?
  8. 15. Which part represents the junction between ovule and funicle?
Down
  1. 1. Which part of the pistil serves as a landing platform for pollen grains?
  2. 3. -196℃ temperature, pollen grains are stored in pollen banks for years in .............
  3. 4. In the grass family, the large, single cotyledon is called
  4. 5. Long, Ribbon like kind of pollen grains are formed in many marine sea-grass species such as ?
  5. 8. The .......... is final product of sexual reproduction in flowering plants is
  6. 12. By which special mechanism, seeds are produced without fertilisation?
  7. 13. What is the number of microsporangia in each lobe of a dithecous anther?