1.13 - THE EMBRYO

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Across
  1. 1. In the grass family the cotyledon is called ........... that is situated towards one side (lateral) of the embryonal axis.
  2. 6. The ........... gives rise to the proembryo and subsequently to the globular, heart-shaped and mature embryo.
  3. 7. Most zygotes divide only after certain amount of .......... is formed.
  4. 9. This is an adaptation to provide assured .......... to the developing embryo.
  5. 10. A typical dicotyledonous embryo , consists of an ................ and two cotyledons.
  6. 12. Though the seeds differ greatly, the ............. of embryo development (embryogeny) are similar in both monocotyledons and dicotyledons.
  7. 13. The portion of embryonal axis above the level of cotyledons is the ........., which terminates with the ......... or stem tip.
Down
  1. 2. Epicotyl has a shoot apex and a few leaf primordia enclosed in a hollow foliar structure, the ...........
  2. 3. At its lower end, the embryonal axis has the radical and root cap enclosed in an undifferentiated sheath called ..............
  3. 4. The cylindrical portion below the level of cotyledons is ........... that terminates at its lower end in the .......... or root tip.
  4. 5. The root tip is covered with a ............
  5. 8. Embryo develops at the ............ end of the embryo sac where the zygote is situated.
  6. 11. Embryos of monocotyledons (Figure 1.14b) possess only ...............