Question:
The correct sequence of events in prophase I is
The correct sequence of events in prophase I is
Updated On: Apr 1, 2025
- Synapsis → Crossing over → Chiasmata → Terminalisation.
- Crossing over → Synapsis → Chiasmata → Terminalisation.
- Chiasmata → Synapsis → Crossing over → Terminalisation.
- Chiasmata → Crossing over → Synapsis → Terminalisation.
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The Correct Option is A
Solution and Explanation
In prophase I of meiosis, the following sequence of events occurs:
- Synapsis: The homologous chromosomes come together and align closely to form pairs.
- Crossing over: The exchange of genetic material between non-sister chromatids of homologous chromosomes occurs, leading to genetic variation.
- Chiasmata: These are the visible points where the homologous chromosomes are physically connected during crossing over.
- Terminalisation: The chiasmata move towards the ends of the chromatids as the chromosomes prepare to separate.
Thus, the correct answer is (A) : Synapsis → Crossing over → Chiasmata → Terminalisation..
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