What is the main feature of double fertilisation in angiosperms?
Answer and explanation
Correct answer: One male gamete fuses with the egg cell, while the other fuses with the two polar nuclei.
Double fertilisation is characteristic of angiosperms. One male gamete fuses with the egg to form a diploid zygote, while the other fuses with the two polar nuclei to form the usually triploid primary endosperm nucleus. The second event is triple fusion. Two separate male gametes participate; the same gamete does not perform both fusions.
Frequently asked questions
What is the correct answer to this question?
One male gamete fuses with the egg cell, while the other fuses with the two polar nuclei.
Why is this the correct answer?
Double fertilisation is characteristic of angiosperms. One male gamete fuses with the egg to form a diploid zygote, while the other fuses with the two polar nuclei to form the usually triploid primary endosperm nucleus. The second event is triple fusion. Two separate male gametes participate; the same gamete does not perform both fusions.
Which subject and chapter does this question cover?
This is a Class 11 Biology question. Chapter: Morphology of Flowering Plants. Topic: flowers.
