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Multiple Choice
What structure is responsible for moving chromatids during cell division in mitosis?
A
Spindle fibers
B
Cell membrane
C
Nucleolus
D
Ribosomes
Verified step by step guidance
1
Understand the process of mitosis: Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus. It involves several stages: prophase, metaphase, anaphase, and telophase.
Identify the role of spindle fibers: During mitosis, spindle fibers are crucial for separating chromatids. They form a structure known as the mitotic spindle, which is responsible for moving and segregating the chromosomes during cell division.
Differentiate between the given options: Analyze each option to determine its role in cell division. The cell membrane is involved in enclosing the cell, the nucleolus is involved in ribosome production, and ribosomes are responsible for protein synthesis. None of these are directly involved in moving chromatids.
Focus on the correct structure: Spindle fibers are composed of microtubules and are the structures that attach to the centromeres of chromatids, pulling them apart to opposite poles of the cell during anaphase.
Conclude with the correct answer: Based on the understanding of mitosis and the role of spindle fibers, identify spindle fibers as the correct structure responsible for moving chromatids during cell division.