Updated by: Arabinda Naik
Autosomal Genes:
Autosomal genes are located on the autosomes, which are non-sex chromosomes (i.e., chromosomes other than the X and Y chromosomes). Autosomal genes are inherited by both males and females in a similar manner. The inheritance of autosomal genes follows Mendelian principles, such as dominant and recessive alleles. Autosomal traits can be passed from parents to their offspring without regard to the sex of the parent or the offspring.
Examples of autosomal traits include traits like eye colour, hair colour, and most diseases not associated with the sex chromosomes (e.g., Huntington's disease).
Sex-Linked Genes (Six-Linked Genes):
Sex-linked genes, also known as X-linked or Y-linked genes, are genes located on the sex chromosomes (X and Y). "Six-linked genes" doesn't have a standard genetic terminology, but I assume you meant "sex-linked genes." Sex-linked genes often show different inheritance patterns between males and females because males have one X and one Y chromosome, while females have two X chromosomes. X-linked genes can be recessive or dominant, but their inheritance patterns are influenced by the sex of the individual. For example, a recessive X-linked trait will be more commonly expressed in males because they have only one X chromosome, while females would need to inherit two copies of the recessive allele to express the trait.
Examples of X-linked traits include colour blindness and haemophilia, where males are more often affected by these conditions than females.