Double fertilization offers stimulus to the plants that is responsible forovary developing into fruits and ovules developing into seeds. As double fertilization is a distinctive characteristic of angiosperms,the seeds of angiosperms are highly accessible.
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What is the mechanism of fertilization in angiosperms?
The two sperm cells make through the ovule-synergid cell. This process leads into fertilization. Fertilization in angiosperms leads to two structures, which are: endosperm and zygote. As such, the name of the mechanism is double fertilization. Double fertilization: This is a procedure containing 2 sperm cells.
What is double fertilization in endosperm?
A FERTILIZATION OF THE CENTRAL CELL AND DEVELOPMENT OF THE ENDOSPERM. Double fertilization is characterized by the formation of two embryos: the embryo-proper which is diploid, and the fusion product of the central cell with one male gamete which is triploid. This secondary triploid zygote develops into the endosperm (Fig.
What is the difference between diploid and double fertilization?
In angiosperms, double fertilization results in the production of an embryo and endosperm, both of which are critical for the development of viable seed. Diploid plants produce diploid embryos and triploid endosperm tissue.
Does double fertilization occur in Gnetales?
Double fertilization evolved in the Gnetales and in the angiosperms, but it differs in the two groups of plants. This phenomenon occurs in the extant Gnetales Ephedra ( Friedman, 1990, 1992, 1994, 1998Friedman, 1990Friedman, 1992Friedman, 1994Friedman, 1998) and Gnetum ( Carmichael and Friedman, 1996 ).