Which of the following refers to the sex cells in an organism?

The term that refers to the sex cells in an organism is "Gametes." Gametes are specialized cells that are involved in sexual reproduction. In humans and many other organisms, there are two types of gametes: sperm and egg cells. These cells are crucial for the process of fertilization, where a male gamete (sperm) merges with a female gamete (egg) to form a zygote, which ultimately develops into a new organism.

Gametes are characterized by being haploid, meaning they contain only one set of chromosomes, which is half the number found in somatic cells. This haploid state allows for the restoration of the diploid chromosome number when two gametes fuse during fertilization. Understanding the function and nature of gametes is fundamental in genetics, biology, and various fields of study related to reproduction and heredity.