Multiple Choice
Which stage of the cell cycle is not a phase of mitosis?
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16. Cell Division
Mitosis
Multiple Choice
Which stage is the first phase of mitosis (M phase) in a dividing eukaryotic cell?
A
Anaphase
B
Prophase
C
Telophase
D
Metaphase
Verified step by step guidance1
Recall that mitosis is the process of nuclear division in eukaryotic cells, and it consists of several distinct stages: prophase, metaphase, anaphase, and telophase.
Understand that the M phase (mitotic phase) includes all these stages, starting from the beginning of prophase and ending with telophase, followed by cytokinesis.
Identify the characteristics of prophase: chromosomes condense and become visible, the nuclear envelope begins to break down, and the mitotic spindle starts to form.
Recognize that prophase is the first stage of mitosis because it initiates the visible changes in the nucleus and prepares the cell for chromosome alignment.
Conclude that among the options given, prophase is the correct answer as it marks the start of the mitotic phase.
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