Botany-Cell Cycle Phases
NEET Botany Cell Cycle Phases MCQ Question
Type: MCQ-fact-Medium-Class 11
What marks the start of the metaphase in mitosis?
A
Complete disintegration of the nuclear envelope
B
Separation of sister chromatids
C
Reappearance of the nucleolus
D
Condensation of chromosomes
Correct Answer
Option A
Detailed Explanation
The complete disintegration of the nuclear envelope marks the start of the second phase of mitosis, which is metaphase. At this stage, chromosomes are spread through the cytoplasm and are clearly observable under the microscope.
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