Many different types of mutations can occur within the body. tay-sachs disease is a deadly disorder that is caused by a missing codon in the gene coding for production of the hex a enzyme in the body. which type of mutation is responsible for causing tay-sachs disease?

Correct D). Deletion

Tay-Sachs disease is an autosomal hereditary disease that is known to affect the central nervous system. It results from the mutation caused in the gene that encodes for the beta-hexosaminidase enzyme. It is a lysosomal enzyme that is composed of the beta and alpha polypeptides.

It is caused when both the parents are a carrier, it occurs when a baby is born in absence of hexosaminidase. It affects the nervous system and can change the physical appearance after a few months of the birth.

D

Explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

digestion

it excretes wastes