What is double fertilization in plants describe?

Definition of double fertilization : fertilization characteristic of seed plants in which one sperm nucleus fuses with the egg nucleus to form an embryo and another fuses with polar nuclei to form endosperm.

How does double fertilization take place in flowering plants?

Double fertilization is a chief trait of flowering plants. In the phenomena, one female gamete unites with two male gametes. One of the male gametes fertilizes the egg resulting in the formation of a zygote and the other unites with 2 polar nuclei for the formation of an endosperm.

What is the process of fertilization in plants?

Fertilization in flowering plants happens through a process called pollination. Pollination occurs when pollen grains from the anther land on a stigma. Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. After fertilization occurs, each ovule develops into a seed.

Why is fertilisation in plants called double fertilization?

Fertilisation in flowering plants is referred to as double fertilisation because both the male gametes of the same microspore take part in fusion. One fuses with the egg to form the diploid zygote, and the other fuses with the two polar nuclei (or secondary nuclei) to form the triploid primary endosperm nucleus.

Which statement best describes double fertilization in an angiosperm?

Which statement best describes double fertilization in an angiosperm? A sperm nucleus fuses with an egg cell and a sperm nucleus fuses with polar nuclei.

What is double fertilization 10th?

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 fertilization describe the process of fertilization in plants Class 10?

Fertilisation is the process of fusion of male and female gametes. For the fusion of male and female gametes pollen grains have to reach the surface of the stigma. This is called pollination. Pollen grains received by the stigma, germinate and give rise to pollen tubes.

How do you describe fertilization in plants and why is it so called?

In plants, fertilization is a process of sexual reproduction, which occurs after pollination and germination. Fertilization can be defined as the fusion of the male gametes (pollen) with the female gametes (ovum) to form a diploid zygote. It is a physicochemical process which occurs after the pollination of the carpel.

Which of the following statements best describes double Fertilisation?

Fusion of one male gamete with egg cell and another with secondary nuclei.

What is double fertilization describe it with the help of a neat and well Labelled diagram give its importance?

The process in which fusion of male gamete with eggs and another male gamete with the nucleus takes place in an embryo sac is termed as double fertilization. In the flowering plants after entering one of the synergids the Pollen tube releases the two male gametes into the cytoplasm of synergids.

What is double fertilization class 12th?

What do you mean by double fertilization? Ans: The process of fusion of one male gamete with egg to form diploid zygote and another male gamete with the polar nuclei or secondary nucleus to form primary endosperm nucleus is called double fertilization.

What is double fertilization Class 11 short answer?

Double fertilisation is a major feature of flowering plants. The process of fertilization is known as double fertilization as it involves two forms of fusion in the embryo sac. After triple fusion, the central cell forms the primary endosperm cell and grows into the endosperm while the zygote grows into an embryo.

What are the steps of fertilization in plants?

So, let’s review. plant fertilization is the joining of male and female gametes, resulting in a zygote. The most generalized form of this process requires four steps: pollination, germination, penetration of the ovule, and fertilization. After fertilization, the zygote divides to form an embryo.

What is double fertilization?

Two products are obtained as a result of double fertilization.

There are chances of polyembryony,and the plant has better chances of survival.

Double fertilization gives rise to an endosperm that provides nourishment to the developing embryo.

It increases the viability of the seeds of angiosperms.

What is double fertilization in flowering plants?

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). It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.

When does double fertilization occur?

When a single egg gets fertilized with two different sperm at the same time, it is called double fertilization. The embryo formed through double fertilization is usually more prone to abnormal chromosomal behavior that is not good for embryo development.