Explanation:
The role of active cytotoxic T cells is to attack <u> </u><u>body cells that have been infected</u>
Answer:
to take precise measurements and do experiments
Answer:
Just one round without DNA repair
Explanation:
When an error occurs before or during replication, in a normal system, there is always proofreading and correction. If the error is not corrected during replication, it can then be corrected by the DNA damage repair system. But if not also corrected, the error becomes fixed and subsequent replication will produce this error
Spirilla are spiral shaped bacteria cells
