A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has about 25000. Approximately 1000 of these gen
es are present in both cell types. From what you know about evolution, explain how organizations can also have different genes. What sorts of functions might these shared genes have?
nerves that emerge directly from the brain. Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck.
