Question

Based on cell activities readily visible in the light microscope, there are two major cell cycle phases, ________ and _________.

1) M phase, cytokinesis
2) interphase, cytokinesis
3) M phase, C phase
4) M phase, interphase
5) C phase, interphase

Answer 1

The two major cell cycle phases easily seen under a light microscope are mitosis (M phase) and interphase. Interphase is for cell growth and DNA replication, while the M phase includes mitosis and cytokinesis.

Step-by-step explanation:

Based on cell activities readily visible in the light microscope, there are two major cell cycle phases: mitosis (M phase) and interphase. During interphase, the cell undergoes activities such as growth and DNA replication, divided into three subphases: G1, S, and G2. In the M phase, the cell divides through mitosis (also known as karyokinesis) and cytokinesis, which is the division of the cytoplasm into two separate cells. Thus, the correct answer from the options provided would be '4) M phase, interphase'.