What structure is formed when segments of chromatids break and are exchanged during meiosis I?
Understand the Problem
The question is asking about the specific structure that forms during meiosis I when parts of chromatids are broken and exchanged. This is related to genetic recombination, specifically during crossing over.
Answer
Chiasma
The structure formed when segments of chromatids break and are exchanged during meiosis I is called the chiasma.
Answer for screen readers
The structure formed when segments of chromatids break and are exchanged during meiosis I is called the chiasma.
More Information
Chiasmata are crucial for the proper segregation of homologous chromosomes during meiosis I, leading to increased genetic diversity.
Tips
A common mistake is confusing the synaptonemal complex with chiasmata. The synaptonemal complex facilitates crossing over, but chiasmata are the visible manifestations of this cross-over event.
Sources
- Meiosis I | Biology for Majors I - Lumen Learning - courses.lumenlearning.com
- Meiosis — Knowledge Hub - Genomics Education Programme - genomicseducation.hee.nhs.uk
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