The topic sentence is the first sentence. It defines what the rest of the paragraph will be. <span />
Pues no entiendo porque. Perdón pero no puedo ayudar
I think it’s B
Hope it’s correct
Answer:
Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes.
Explanation: