Explain why sexual reproduction in angio | Class 11 Biology Chapter Plant Kingdom, Plant Kingdom NCERT Solutions

Question:

Explain why sexual reproduction in angiosperms is said to take place through double fertilization and triple fusion. Also draw a labelled diagram of embryo sac to explain the phenomena.

Answer:

In angiosperm one male gamete fuses with the female gamete to form zygote while the fusion of the male gamete and the secondary nucleus forms the primary endosperm nucleus or (PEN).

When two instances of fusion of nuclei take place this phenomenon is known as Double Fertilization. As the male gamete fuses with secondary nucleus having two polar nuclei results in the formation of endosperm which has 3n chromosome, this phenomenon is known as Triple fusion.

angiosperm embryo sac


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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 4: Explain why sexual reproduction in angiosperms is said to take place through double fertilization an....