B) Pollen tube enter into the ovule through micropyle
C) Pollen tube enter into the ovule through chalaza
D) Vegetative cell and tube cell fuse
Explanation
Syngamy is the fusion of gametes, $i.e,$ the union of nuclei of male gamete and female gamete in the process of reproduction. In angiosperms, generative fertilization is also called, syngamy.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.