1. The double fertilization is the type of Premitotic syngamy.

2. Syngamy - The fusion of egg and sperm cells into a zygote.

3. Double fertilization is the type of the Premitotic syngamy .

4. Gametes showed intensive positive phototaxis, after syngamy, motile zygotes showed negative phototaxis.

5. The double fertilization is the type of the premitotic syngamy.