👉 The term "autosomal" refers to a chromosome that is composed of two strands, one from each parent. In humans, this autosomal chromosome is located on chromosome 21 and is called chromosome 21p13. Autosomal chromosomes are crucial for genetic inheritance, as they carry the instructions necessary for the development and function of many types of cells in the body. These chromosomes have a single gene that controls the expression of certain genes. In humans, autosomal chromosomes come from each