👉 In biology, a "chaetiferous" organism is an animal that has two sets of chromosomes. These are called the sex chromosomes, which are located on one side of the cell and are responsible for determining sex. The sex chromosome determines whether an organism is male or female. For example, in humans, the sex chromosomes are X (male) and Y (female). If a human's sperm cells have two X chromosomes and two Y chromosomes, they will produce four childless gametes
