👉 Zygosity is a genetic concept that describes how two or more individuals have different alleles for a particular gene. In other words, if one individual carries a specific allele for a particular trait (like red hair), and another individual does not carry that same allele, then those individuals are considered to be of the same sex. This concept allows scientists to understand genetic variations in humans and other organisms, as well as how they can be passed down from parents to offspring.
zygosity