• A grass embryo is an example of a typical dicotyledonous embryo.
• It consists of an embryonal axis and two cotyledons.
• The portion of embryonal axis above the level of cotyledons is the epicotyl, which terminates with the plumule or stem tip.
• The cylindrical portion below the level of cotyledons is hypocotyl that terminates at its lower end in the radical or root tip.
• The root tip is covered with a root cap.
• The seminiferous tubule are the site within the male testes where the sperm germinates, matures and gets transported from.
• Each seminiferous tubule is lined on its inside by two types of cells called male germ cells (spermatogonia) and Sertoli cells.
Rate this question :