At what stage does crossing over occur in meiosis?
Understand the Problem
The question is asking about the specific stage in meiosis where crossing over occurs, which involves the exchange of genetic material between homologous chromosomes during the formation of gametes.
Answer
pachytene stage of prophase I
The final answer is the pachytene stage of prophase I.
Answer for screen readers
The final answer is the pachytene stage of prophase I.
More Information
Crossing over, a key event during meiosis, allows for genetic variation by exchanging genetic material between homologous chromosomes.
Tips
A common mistake is to think crossing over occurs in metaphase I rather than prophase I. Remember it specifically happens in the pachytene stage.
Sources
- What stage does crossing over occur in meiosis? - byjus.com
- Genetics, Meiosis - StatPearls - ncbi.nlm.nih.gov
- Chromosomal crossover - Wikipedia - en.wikipedia.org
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