Cancer-causing genes are called:
a. structural genes
b. expressed genes
c. oncogenes
d. regulatory genes
The answer is the option (c) oncogenes
Oncogenes are genes that have the potential to cause cancer when mutated or abnormally expressed. When these genes undergo mutations or become excessively active, they can trigger unchecked cell growth, which plays a role in tumor formation. Oncogenes can be activated by various factors such as mutations, viral infections, or environmental influences.