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 is double fertilization class 10th?

Double fertilisation: It is the process of fusion of one male gamete with the egg nucleus and another male gamete with the polar nuclei or secondary nucleus is called double fertilisation.

What is double fertilization describe the fertilized embryo sac?

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).

What is fertilization give its significance?

Significance of fertilization: Fertilization maintains the diploid number of chromosomes in the newly formed zygote. It combines characters from two parents bringing about variation in the offspring. It determines the sex of the offspring. Fertilization introduces centrioles in the cell which are missing in the ovum.

What is double fertilization and write the significance?

Double fertilization is the process of fusion of one male game with the egg nucleus and another male gamete with the polar nuclei or secondary nucleus. As there is triple fusion and fertilization at the same time hence, called as double fertilization e.g., anglospermic plants.

What is double fertilization give significance of double fertilization?

Solution. Significance of double fertilization: It is a unique feature of angiosperms. It ensures that the parent plant invests a seed with a food store, only if the egg is fertilized. The diploid zygote develops into an embryo which consequently develops into a new plant.

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 explain with the help of diagram?

The process of fusion of one male gamete with the egg along with the union of the second male gamete with the two polar nuclei or the secondary nucleus is called double fertilisation. Out of the two male gametes, one fuses with the egg to carry out generative fertilisation or syngamy.

What is Double fertilization class 12th?

What is the significance of fertilization membrane class 12?

The membrane that forms on the inner surface of the vitelline membrane of the ovum after the entry of a spermatozoon, thereby acting as a barrier to prevent additional penetration of other spermatozoa.

What is mean by Double fertilization and triple fusion give the significance of it?

Hint: Double fertilization involves fusion of two different components of the embryo sac by the two male gametes. First event of fusion results in a diploid (2n) zygote. The second event of fusion results in a triploid (3n) nucleus. The second fertilization is called triple fusion as it involves fusion of three nuclei.

What is Double fertilization Class 10 Brainly?

Answer: Double fertilization is a complex fertilization mechanism of flowering plants. This process involves joining of a female gametophyte with two male gametes. It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.