This allele is only expressed when two copies are present. *

recessive

Explanation:

allele that is not expressed unless two copies are present in an organism's genotype

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !