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“The synaptonemal complex is formed during A stage and dissolves during B stage”.
Complete the above statement by choosing the correct option for A and B.
Complete the above statement by choosing the correct option for A and B.
- a)A - Diplotene, B - Diakinesis
- b)A - Leptotene, B - Zygotene
- c)A - Zygotene, B - Diplotene
- d)A - Pachytene, B - Diplotene
Correct answer is option 'D'. Can you explain this answer?
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“The synaptonemal complex is formed during A stage and dissolves...
The Synaptonemal Complex in Meiosis
The synaptonemal complex (SC) is a crucial structure in meiosis that facilitates the pairing of homologous chromosomes. Understanding its formation and dissolution is essential for grasping the process of genetic recombination.
Stages of Meiosis
- Leptotene: Chromosomes begin to condense.
- Zygotene: Homologous chromosomes start to pair, and the synaptonemal complex forms, facilitating close alignment.
- Pachytene: The SC is fully developed, and crossing over occurs.
- Diplotene: The SC begins to dissolve, and homologous chromosomes start to separate.
- Diakinesis: The chromosomes condense further, and the nuclear envelope breaks down.
Explanation of the Correct Answer (Option D)
- A - Pachytene:
- The synaptonemal complex is fully formed during this stage.
- This is when homologous chromosomes are tightly paired, allowing for genetic exchange (crossing over) to occur.
- B - Diplotene:
- The SC begins to dissolve during diplotene.
- Homologous chromosomes start to separate, and the complex is no longer needed for chromosome alignment.
Importance of the Synaptonemal Complex
- The SC is vital for ensuring accurate chromosome pairing and exchange of genetic material.
- Its formation and dissolution are integral to the proper progression of meiosis, leading to genetic diversity in gametes.
In conclusion, the synaptonemal complex is formed during the pachytene stage and dissolves during the diplotene stage, making option D the correct answer. Understanding these processes is crucial for comprehending meiosis and its role in reproduction and genetics.
The synaptonemal complex (SC) is a crucial structure in meiosis that facilitates the pairing of homologous chromosomes. Understanding its formation and dissolution is essential for grasping the process of genetic recombination.
Stages of Meiosis
- Leptotene: Chromosomes begin to condense.
- Zygotene: Homologous chromosomes start to pair, and the synaptonemal complex forms, facilitating close alignment.
- Pachytene: The SC is fully developed, and crossing over occurs.
- Diplotene: The SC begins to dissolve, and homologous chromosomes start to separate.
- Diakinesis: The chromosomes condense further, and the nuclear envelope breaks down.
Explanation of the Correct Answer (Option D)
- A - Pachytene:
- The synaptonemal complex is fully formed during this stage.
- This is when homologous chromosomes are tightly paired, allowing for genetic exchange (crossing over) to occur.
- B - Diplotene:
- The SC begins to dissolve during diplotene.
- Homologous chromosomes start to separate, and the complex is no longer needed for chromosome alignment.
Importance of the Synaptonemal Complex
- The SC is vital for ensuring accurate chromosome pairing and exchange of genetic material.
- Its formation and dissolution are integral to the proper progression of meiosis, leading to genetic diversity in gametes.
In conclusion, the synaptonemal complex is formed during the pachytene stage and dissolves during the diplotene stage, making option D the correct answer. Understanding these processes is crucial for comprehending meiosis and its role in reproduction and genetics.
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“The synaptonemal complex is formed during A stage and dissolves...
The synaptonemal complex is a protein structure that forms during the Pachytene stage of prophase I of meiosis, facilitating homologous chromosome pairing. It then dissolves during the Diplotene stage, marking the beginning of homologous chromosome separation.
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“The synaptonemal complex is formed during A stage and dissolves during B stage”.Complete the above statement by choosing the correct option for A and B.a)A - Diplotene, B - Diakinesisb)A - Leptotene, B - Zygotenec)A - Zygotene, B - Diplotened)A - Pachytene, B - DiploteneCorrect answer is option 'D'. Can you explain this answer?
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