Question

When does cell division begin and end?

a. Cell division begins at interphase and ends at cytokinesis.
b. Cell division begins at mitosis and ends at interphase.
c. Cell division begins at cytokinesis and ends at interphase.
d. Cell division begins at interphase and ends at mitosis.
e. Cell division begins at mitosis and ends at cytokinesis.

Answer 1

Cell division starts with interphase, proceeds through the four stages of mitosis, and ends with cytokinesis, resulting in two daughter cells; the correct option is a.

Step-by-step explanation:

Cell division in eukaryotic cells includes two main phases: interphase and the mitotic phase (which includes mitosis and cytokinesis). The process begins with interphase, where the cell grows and prepares for division by duplicating its DNA. After interphase, the cell enters the mitotic phase. Mitosis is divided into four stages: prophase, metaphase, anaphase, and telophase, where the nucleus and its contents are divided. Once mitosis is completed, the cell undergoes cytokinesis, where the cytoplasm divides, resulting in two daughter cells. Therefore, the correct answer to the question is that cell division begins at interphase and ends at cytokinesis, which is option a.