What is triple fusion?

Definition of triple fusion

: the fusion involving two polar nuclei and a sperm nucleus that occurs in double fertilization

double fertilization

Double fertilization is a complex fertilization mechanism of flowering plants (angiosperms). This process involves the joining of a female gametophyte (megagametophyte, also called the embryo sac) with two male gametes (sperm).

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Double fertilization - Wikipedia

in a seed plant and results in the formation of the endosperm.

What is triple fusion class 10th?

Triple fusion is a fusion that involves a sperm nucleus and two polar nuclei which occurs in the double fertilization in a seed-bearing plant that results in the endosperm formation.

Why it is called as Triple fusion?

It is called triple fusion due to the presence of 3 nuclei one from the sperm nuclei and two nuclei of polar nuclei. The fusion involves the two polar nuclei and a sperm nucleus that occurs in double fertilization leads to formation of endosperm.

What is triple fusion 12th biology?

Triple fusion is the fusion of the male gamete with two polar nuclei inside the embryo sac of the angiosperm. This process involves the fusion of three haploid nuclei, hence it is known as triple fusion. It results in the formation of the endosperm.

What is the fate of triple fusion?

Triple Fusion is defined as fusion taking place between two polar nuclei and sperm nucleus. This happens during double fertilization in a seed plant, and therefore gives origin to a triploid nucleus known as the Primary Endosperm Nucleus(PEN). The PEN later evolves into an endosperm.

What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusi...

What is importance of triple fusion?

The result of the triple fusion is the formation of a triploid nucleus called a primary endosperm nucleus. This nucleus by repeated mitotic divisions gives rise to the formation of the endosperm This endosperm provides nourishment to the developing embryo.

What is Double fusion?

One male gamete fuses with the female gamete and the other fuses with the secondary nucleus. As two male gametes take part and fertilization and fertilization takes place twice, this process is called double fertilization.

What is triple fusion and syngamy?

1) The fusion of the male and female gametes during fertilization is called syngamy. 1) The fusion of the sperm cell with the two polar nuclei during double fertiliztion is called triple fusion. 2) It produces a zygote which forms the embryo. 2) It produces endosperm cells that develop into the endosperm.

What is fusion in biology?

Cell fusion is an important cellular process in which several uninucleate cells (cells with a single nucleus) combine to form a multinucleate cell, known as a syncytium. Cell fusion occurs during differentiation of myoblasts, osteoclasts and trophoblasts, during embryogenesis, and morphogenesis.

What is double fertilization Class 12?

Double Fertilization- It is a process of fertilization characterized by the fusion of a female gametophyte with two male gametes, thus there are two fertilizations taking place therefore referred to as double fertilization.

Who discovered triple fusion?

Explanation: Nawaschin and Guignard discovered double fertilization. Double fertilization comprises syngamy and triple fusion, which leads to the formation of a zygote and a primary endosperm nucleus, respectively.

What is triple fusion where and how does it happen?

Triple fusion is fusion which involves the fusion of two polar nuclei and a sperm nucleus which occurs in double fertilisation in a seed plant and it further results in the formation of endosperm. This process occurs in the embryo sac of the angiosperms.

What Syngamy means?

Definition of syngamy

: sexual reproduction by union of gametes : fertilization.

What is double fertilization Class 10 CBSE?

Double fertilization : It occurs when one male nucleus fertilizes (fuses) with egg cell to form zygote cell and other male nucleus fuses (fertilizes) with two polar nuclei to cause triple fusion.

What is endosperm class 10th?

Endosperm is a tissue present inside the seeds of most angiosperms following double fertilization. It is rich in carbohydrates, proteins and lipids and provides nourishment to the growing embryo.

What is triploid cell Class 10?

In angiosperms, the endosperm is formed from triple fusion in which male gamete fuses with a diploid secondary nucleus resulting in the formation of a triploid primary endosperm mother cell which then forms the endosperm. Hence endosperm is a triploid tissue.

What is fusion give example?

Fusion is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together, or fuse, to form an atom of helium. In the process some of the mass of the hydrogen is converted into energy.

What is the difference in fission and fusion?

The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.

What is triple function?

Definition of triple fusion

: the fusion involving two polar nuclei and a sperm nucleus that occurs in double fertilization in a seed plant and results in the formation of the endosperm.

What is the difference between syngamy and triple fusion class 11?

The fusion of the male and female gametes during fertilization is named syngamy. The fusion of the sperm cell with the two polar nuclei during double fertilization is called triple fusion. Syngamy is a generative fertilization. Triple fusion is a vegetative fertilization.

What are the three types of syngamy?

There are three types of syngamy (Figure 4.2. 2): isogamy, heterogamy, and oogamy. Isogamy happens when the gametes that fuse together are similar.

What is syngamy and conjugation?

While syngamy is a permanent fusion of the two cells, conjugation is a temporary fusion of two cells.

What is known as double fertilization and triple fusion?

Fertilization of the two gametes is called syngamy. The fertilization of a sperm cell with the central cell is called triple fusion. Since the embryo sac is fertilized twice, the fertilization of gametes in angiosperms is called double fertilization. After fertilization, the ovule is developed into the seed.

Who discovered double fertilization?

Summary. The fusion of one sperm with the egg cell to form the embryo and of the other sperm with the polar fusion nucleus to give rise to the endosperm ('double fertilization') was discovered by Nawaschin in 1898 in the liliaceous plants, Lilium martagon and Fritillaria tenella.

How many chemicals are involved in triple fusion?

In triple fusion, two polar nuclei and one male gamete are involved.