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An endosperm is formed after the two sperm nuclei inside a pollen grain reach the interior of a female gametophyte or megagametophyte, also called the embryonic sac.One sperm nucleus fertilizes the egg cell, forming a zygote, while the other sperm nucleus usually fuses with the binucleate central cell, forming a primary endosperm cell (its nucleus is often called the triple fusion nucleus).
The parts of a flower Double fertilization. Double fertilization or double fertilisation (see spelling differences) is a complex fertilization mechanism of angiosperms.This process involves the fusion of a female gametophyte or megagametophyte, also called the embryonic sac, with two male gametes (sperm).
These form the binucleate endosperm mother cell. This leaves three remaining nuclei on the micropylar end and three remaining nuclei on the antipodal end. The nuclei on the micropylar end is composed of an egg cell, two synergid cells, and the micropyle, an opening that allows the pollen tube to enter the structure. [ 4 ]
Detailed illustration of the different parts constituting a wheat kernel. The germ of a cereal grain is the part that develops into a plant; [1] it is the seed embryo. [2] Along with bran, germ is often a by-product of the milling [3] that produces refined grain products.
A refined grain is defined as having undergone a process that removes the bran, germ and husk of the grain and leaves the endosperm, or starchy interior. [1] Examples of refined grains include white bread, white flour, corn grits and white rice. [2] Refined grains are milled which gives a finer texture and improved shelf life. [3]
The first No. 1 movie of 2025 — Gerard Butler and O’Shea Jackson Jr.’s long-awaited heist movie sequel Den of Thieves 2: Pantera — is available on demand this week, and it’s arriving ...
Hints and the solution for today's Wordle on Friday, February 14.
The two-year starter will be a fascinating draft prospect. Milroe was 205-of-319 passing for 2,844 yards and 16 TDs with 11 interceptions in 2024.