What is triple fusion? Where and how doe | Class 12 Biology Chapter Sexual Reproduction in Flowering Plants, Sexual Reproduction in Flowering Plants NCERT Solutions

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Academic session 2026-27, Chapter 1 in the current curriculum.

Welcome to the NCERT Solutions for Class 12 Biology - Chapter Sexual Reproduction in Flowering Plants. This page offers a step-by-step solution to the specific question from Exercise 1, Question 11: What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 11: What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.
Answer:

Triple fusion is the fusion of the male gamete with two polar nuclei inside the embryo sac of the angiosperm.

This process of fusion takes place inside the embryo sac.

When pollen grains fall on the stigma, they germinate and give rise to the pollen tube that passes through the style and enters into the ovule. After this, the pollen tube enters one of synergids and releases two male gametes there. Out of the two male gametes, one gamete fuses with the nucleus of the egg cell and forms the zygote (syngamy). The other male gamete fuses with the two polar nuclei present in the central cell to form a triploid primary endosperm nucleus. Since this process involves the fusion of three haploid nuclei, it is known as triple fusion. It results in the formation of the endosperm.

One male gamete nucleus and two polar nuclei are involved in this process.

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Comments

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  • Aug 30, 2019

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  • Aug 08, 2019

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  • May 26, 2019

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  • May 26, 2019

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  • May 17, 2019

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  • Apr 21, 2019

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  • Apr 14, 2019

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 11: What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.....

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