Final answer:
All the genes are present in liver cells, but only a specific set of those genes are expressed to perform the specialized functions of the liver.
Step-by-step explanation:
The correct answer to the question “Which genes are present in the liver cells?” is B) All the genes are present in the liver cells. Every somatic cell in an organism contains the full complement of DNA, meaning all the genes are present in each type of cell, including liver cells. However, not all genes are expressed in every cell. The specific set of genes that are expressed in a liver cell determine its function and distinguish it from other types of cells, such as eye cells. The differential gene expression patterns are what allow cells to carry out specialized functions appropriate to their role in the body.