Cell Differentiation

noun a person or thing from which a person, animal, or plant is descended or originates; an ancestor or parent.

adjective relating to a progenitor or progenitors; ancestral.

• The progenitor of this genetic disorder has been traced back to a single individual in the family tree.
• I heard that Sarah's great-grandmother is the progenitor of their family's wealth.
• My dad always jokes that he's the progenitor of our family's love for spicy food.
• The ancient civilization is considered the progenitor of modern society as we know it.

noun a structure at the tip of a sperm cell that enables the sperm to penetrate the egg during fertilization

• The acrosome is a cap-like structure found on the head of a sperm cell.
• The acrosome helps the sperm cell penetrate the egg during fertilization.
• That acrosome thingy on the sperm is what gets the job done.
• Just like the acrosome guides the sperm to the egg, determination can lead you to success.