The Question is from neet-botany cell-cycle-and-cell-division meiosis, and it was created by the author B VENKAT

Question

Which of the following statements regarding meiosis are TRUE?
(A) Tetrad formation occurs during Zygotene.
(B) During Anaphase II, sister chromatids separate.
(C) Chiasmata formation is complete by the end of Diplotene.
(D) Nucleolus, Golgi complex, and ER reappear during Telophase I.

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
	**Primary Concept**: Meiosis
	**Related Topics**: Cell Cycle, Chromosome Structure, Genetic Recombination
	**Prerequisites**: Stages of Meiosis I and Meiosis II
## SOLUTION PATHWAY
**Given Information**: 
	Statements about different stages of meiosis.
**Method & Steps**:
	1. Analyze each statement based on the events occurring in the respective stages of meiosis.
	2. Determine the veracity of each statement.
	3. Select the option containing all the true statements.
## OPTION ANALYSIS
[A] ✓: **Tetrad formation occurs during Zygotene**:  During Zygotene of Prophase I, homologous chromosomes pair up forming a complex called synaptonemal complex. This pairing of homologous chromosomes is called synapsis. Each pair of homologous chromosomes is called a bivalent or a tetrad.
[B] ✓: **During Anaphase II, sister chromatids separate**: During Anaphase II of Meiosis II, the centromeres split, and the sister chromatids separate and move towards opposite poles of the cell.
[C] ✓: **Chiasmata formation is complete by the end of Diplotene**: During Diplotene of Prophase I, the synaptonemal complex starts to dissolve, and homologous chromosomes start separating except at the points of crossing over called chiasmata. Chiasmata formation is thus complete by the end of Diplotene.
[D] :x: **Nucleolus, Golgi complex, and ER reappear during Telophase I**: The nucleolus, Golgi complex, and ER reappear during Telophase II, not Telophase I. In Telophase I, the chromosomes decondense, and the nuclear envelope may reappear. Cytokinesis occurs, resulting in two haploid daughter cells. The cells then proceed to Meiosis II without the reappearance of these organelles.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the stages of Meiosis I and Meiosis II: Create a clear table summarizing the key events of each stage.
		2. Misunderstanding the timing of chiasmata formation: Remember that crossing over occurs during Pachytene, but chiasmata become visible during Diplotene and persist until Anaphase I.
	**Quick Tips**:
		1. Use mnemonic devices to remember the order of stages in Prophase I: Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis.
		2. Visualize the chromosome movements during the different stages of meiosis using diagrams or animations.

B VENKAT · Answer

A and B only

B VENKAT · Answer

B and C only

B VENKAT · Answer

The correct Option is "A, B, and C"

B VENKAT · Answer

A, B, C, and D

NEET Botany Cell Cycle and Cell Division Meiosis MCQs

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