<span>Children who suffer from Tay-Sachs disease have the inability to break down certain lipids in the body. The lipids accumulate in the brain and interfere with normal biological processes.</span>
Answer:
D is rhe answer of rhis question.
Explanation:
collection of cells make tissue, collection of tissues form organ, similarly group of organs combine to form a system and when these systems combine it forms a whole body of organism.
The first step to DNA replication is to unzip the double matrix which also means that they will break the double matrix.