Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question
Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSexual Reproduction in Flowering Plants5 Marks
Question
What do you mean by double fertilization ? Explain with the help of diagram.###Explain double fertilization.
✓
Answer
Double fertilization is a complex fertilization mechanism of flowering plants. It was first discovered by serger Nawaschin in 1898. In the process of double fertilization one male gametes fusion with the egg to form zygote and the second male gametes fuses with the two polar nuclei on the secondary nucleus to form triploid primary endosperm nucleus. Therefore it is also called triple fusion. Fusion of male nucleus and egg to form zyogte and fusion of another male nucleus with secondary nucleus to form primary endosperm nucleus.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.