What is a reproductive cell that forms half of a zygote called?

A reproductive cell that forms half of a zygote is known as a gamete. Gametes are the specialized reproductive cells involved in sexual reproduction. In humans, there are two types of gametes: sperm and ova (eggs). When a sperm cell fertilizes an ovum, they combine to form a zygote, which is the initial cell created when two gametes unite.

While sperm and ovum are specific types of gametes, the term "gamete" encompasses both and highlights their role in reproduction. Therefore, recognizing that a gamete is the general term for any reproductive cell that can combine to form a zygote provides clarity in understanding reproductive biology. Consequently, identifying that the correct answer is gamete aligns with a broader comprehension of how reproduction works at the cellular level.