The Question is from neet-botany , and it was created by the author D VINOD

Question

Which of the following statements accurately describes a key difference between mitosis and meiosis?

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: Option C
## CONCEPT FRAMEWORK
 **Primary Concept**: Cell division (mitosis and meiosis)
 **Related Topics**: Chromosomes, spindle fibers, crossing over, cytokinesis, genetic variation
 **Prerequisites**: Basic understanding of cell biology and the cell cycle.
## SOLUTION PATHWAY
**Given Information**:
  The question asks for a key difference between mitosis and meiosis.
  Options A, B, C, and D describe potential differences.
**Method & Steps**:
 1. Analyze each option to determine its accuracy in describing a difference between mitosis and meiosis.
  Reasoning: We need to identify the statement that is true for only one of the processes (mitosis or meiosis).
  Formula/Rule: None directly applicable, but understanding the processes of mitosis and meiosis is crucial.
 2. Evaluate Option A: Chromosome duplication occurs in both mitosis and meiosis (before the division process begins).
  Working: This is not a key difference.
  Key Point: DNA replication is a prerequisite for both processes.
 3. Evaluate Option B: Spindle fiber formation occurs in both mitosis and meiosis. They are essential for separating chromosomes.
  Working: This is not a key difference.
  Key Point:  Spindle fibers are necessary for chromosome segregation in both.
 4. Evaluate Option C: Crossing over (recombination) is a unique feature of meiosis. It shuffles genetic material between homologous chromosomes, increasing genetic diversity.
  Working: This is a key difference; it only happens in meiosis I.
  Key Point: Crossing over contributes to genetic variation in sexually reproducing organisms.
 5. Evaluate Option D: Cytokinesis (division of the cytoplasm) occurs in both mitosis and meiosis, resulting in daughter cells.
  Working: This is not a key difference.
  Key Point: Cytokinesis is the final step in both processes.
 6. Conclusion: Option C accurately describes a key difference between mitosis and meiosis.
  Result: Option C
  Verification:  The other options describe processes common to both mitosis and meiosis.
 ## OPTION ANALYSIS
A :x: Chromosome duplication happens in both mitosis and meiosis before the division process.
B :x: Spindle fibers are involved in both mitosis and meiosis for chromosome segregation.
C ✓: Crossing over, a process that increases genetic diversity through recombination, is unique to meiosis.
D :x: Cytokinesis, the division of the cytoplasm, occurs in both mitosis and meiosis.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the stages of mitosis and meiosis: Carefully review the steps of each process.
  2.Overlooking the significance of crossing over: Understand that crossing over is a major source of genetic variation in meiosis.
 **Quick Tips**:
  1.Remember that mitosis produces genetically identical daughter cells, while meiosis produces genetically diverse gametes.
  2.Use mnemonics or diagrams to help you remember the key differences between mitosis and meiosis.

D VINOD · Answer

Chromosome duplication occurs in mitosis but not meiosis.

D VINOD · Answer

Spindle fiber formation occurs in mitosis but not meiosis.

D VINOD · Answer

The correct Option is "Crossing over occurs in meiosis but not mitosis."

D VINOD · Answer

Cytokinesis occurs in mitosis but not meiosis.

NEET Botany MCQs

Select Chapter

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company