Human fertilization is defined as the union between a sperm and an egg, which marks the beginning of a new life and the basis of human reproduction. The result of fertilization is the production of a zygote cell, a cell which genome is formed of a combination of both the sperm's and the egg's genome. As could be noted, the term "fertilization" is closely related with the terms "sperm", "egg" and "zygote". Therefore, "fertilization" is the term that best completes the set.
In the members of solanaceae family examples potato,tomato, egg plant or brijal, flowers have five (5) stamens and petals are also (five) in numbers. Stamens in the flowers of the above mentioned plants are attached with the petals of the flowers. This condition is known as epipetalous.
