1. Double fertilization in angiosperms was discovered by:

2. How many meiotic divisions are necessary to produce 100 pollen grains ?

3. Double fertilization means:

4. Pollination by bats is called:

5. Pollination by snails is called:

6. Development of fruit without fertilizations is:

7. Who discovered fertilization?

8. When more than one embryoper embryosac is found. It is called:

9. When pollen tube enter into the nucellus through micropyle is called:

10. Maturation of male and female sex organs at different times is known as: