Question:
Identify the key events in Anaphase of Mitosis
A) Centromeres split and chromatids separate
B) Chromatids move to opposite poles
C) Chromosomes are moved to spindle equator
Identify the key events in Anaphase of Mitosis
A) Centromeres split and chromatids separate
B) Chromatids move to opposite poles
C) Chromosomes are moved to spindle equator
A) Centromeres split and chromatids separate
B) Chromatids move to opposite poles
C) Chromosomes are moved to spindle equator
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Anaphase is easily recognized by the "V, L, J, or I" shapes of separating chromosomes as they are pulled toward the poles by their centromeres.
Updated On: Jul 22, 2026
- All A, B & C
- Both A & B
- Both A & C
- Both B & C
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Question:
The question asks us to identify the key structural and chromosomal changes that occur specifically during the Anaphase stage of mitosis.
Step 2: Key Concepts and Approach:
We evaluate the stages of mitosis (Prophase, Metaphase, Anaphase, Telophase) and match the physiological events with their respective phases.
Step 3: Detailed Explanation:
• Event A: During Anaphase, the centromere of each chromosome splits simultaneously.
This allows the sister chromatids to separate. These chromatids are now referred to as individual daughter chromosomes. This is a defining event of Anaphase.
• Event B: Following centromere division, the spindle fibers (microtubules) shorten.
This contraction pulls the newly separated chromosomes towards opposite poles of the dividing cell. This is also a key event of Anaphase.
• Event C: The movement of chromosomes to the spindle equator and their alignment along the metaphase plate is a key event of Metaphase, not Anaphase.
Step 4: Final Answer:
Events A and B occur during Anaphase, while Event C occurs during Metaphase.
The question asks us to identify the key structural and chromosomal changes that occur specifically during the Anaphase stage of mitosis.
Step 2: Key Concepts and Approach:
We evaluate the stages of mitosis (Prophase, Metaphase, Anaphase, Telophase) and match the physiological events with their respective phases.
Step 3: Detailed Explanation:
• Event A: During Anaphase, the centromere of each chromosome splits simultaneously.
This allows the sister chromatids to separate. These chromatids are now referred to as individual daughter chromosomes. This is a defining event of Anaphase.
• Event B: Following centromere division, the spindle fibers (microtubules) shorten.
This contraction pulls the newly separated chromosomes towards opposite poles of the dividing cell. This is also a key event of Anaphase.
• Event C: The movement of chromosomes to the spindle equator and their alignment along the metaphase plate is a key event of Metaphase, not Anaphase.
Step 4: Final Answer:
Events A and B occur during Anaphase, while Event C occurs during Metaphase.
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