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Dissolution of synaptonemal complex occu...

Dissolution of synaptonemal complex occurs during

A

Pachytene

B

Leptotene

C

Diplotene

D

Diakinesis

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about the stage during which the dissolution of the synaptonemal complex occurs in meiosis. 2. **Identifying the Stages of Meiosis**: The stages mentioned in the options are: - Leptotene - Zygotene - Pachytene - Diplotene - Diakinesis 3. **Analyzing Each Stage**: - **Leptotene**: This is the first stage of prophase I where chromosomes begin to condense. The synaptonemal complex is not yet formed, so dissolution does not occur here. - **Zygotene**: In this stage, homologous chromosomes begin to pair up and the synaptonemal complex starts to form. Therefore, dissolution does not occur here. - **Pachytene**: This is the stage where crossing over occurs, and the synaptonemal complex is fully formed. Thus, dissolution does not happen in this stage. - **Diplotene**: This is the stage where the synaptonemal complex begins to dissolve. Homologous chromosomes start to separate, except at points called chiasmata where they remain attached. - **Diakinesis**: In this stage, the synaptonemal complex has completely disappeared, and the chromosomes are fully condensed and ready for metaphase. However, the dissolution primarily occurs in the previous stage, Diplotene. 4. **Conclusion**: The correct answer is **Diplotene**, as this is the stage where the dissolution of the synaptonemal complex occurs. ---
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