A trait that can mask another trait is known as a dominant trait.
Different I think is your answer
Sex linked inheritance usually occurs on the X chromosome. Males have one X, meaning if they receive the specific sex linked gene, they will have the trait. However for a female to possess the trait, she must receive 2 X chromosomes for that trait.
Tay-Sachs disease is caused by mutations in the HEXA gene and inheritance is autosomal recessive . The HEXA gene gives the body instructions to make part of the beta-hexosaminidase A enzyme, which is needed to break down a substance called GM2 ganglioside.
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