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Sequentially the last stage to occur amo...

Sequentially the last stage to occur among the following is :

A

Diakinesis

B

Pachytene

C

Zygotene

D

Leptotene

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the sequential order of stages in meiosis, we will analyze the stages of prophase I in meiosis and identify which stage occurs last among the given options. ### Step-by-Step Solution: 1. **Identify the Stages of Prophase I**: Prophase I of meiosis is divided into five distinct stages: - Leptotene - Zygotene - Pachytene - Diplotene - Diakinesis 2. **Understand Each Stage**: - **Leptotene**: This is the first stage where the chromosomes start to condense. - **Zygotene**: In this stage, homologous chromosomes begin to pair up, forming a synaptonemal complex. - **Pachytene**: This is the stage where crossing over occurs, leading to genetic recombination. - **Diplotene**: Here, the homologous chromosomes begin to separate but remain connected at points called chiasmata. - **Diakinesis**: This is the final stage of prophase I where further chromatin condensation occurs, and the spindle fibers begin to form. 3. **Determine the Last Stage**: The question asks for the last stage to occur among the options provided: diakinesis, pachytene, zygotene, and leptotene. - Since diakinesis is the final stage of prophase I, it is the last stage to occur. 4. **Conclusion**: Therefore, the correct answer to the question is **diakinesis**. ### Final Answer: **Diakinesis** is the last stage to occur among the options given. ---
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