Gerald Ford was the 38th President of the United States. Served as President: 1974-1977. Vice President: Nelson Rockefeller. Party: Republican. Age at inauguration: 61. Born: July 14, 1913 in Omaha, Nebraska. Died: December 26, 2006 (aged 93) Rancho Mirage, California. Married: Elizabeth Bloomer Ford.
After the pollen tube enters the gametophyte, the pollen tube nucleus disintegrates and the two sperm cells are released; one of the two sperm cells fertilises the egg cell (at the bottom of the gametophyte near the micropyle), forming a diploid (2n) zygote.
The haploid cells are gametes and they are usually called the egg or ovum (female) and sperm (male). During fertilization: Egg + sperm = zygote (single diploid cell which undergoes mitotic divisions to produce an entire organism from one cell) In oogenesis (female meiosis) The four haploid cells produced are one ovum and three polar bodies.