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.
Following fertilization by the sperm cell, the egg cell undergoes what is known as a cortical reaction, which alters the egg cellâs zona pellucida â the outer shell of the egg -- and prevents more than one sperm cell from penetrating the eggâs cell wall, which is a condition known as polyspermy.