The diagram shows a cell with homologous chromosomes paired as tetrads aligned along the equator before separation.
Which stage of meiosis is depicted, and what genetic process establishes independent assortment here?
- Acheck_circle
Metaphase I; random orientation of homologous pairs determines independent assortment.
- B
Prophase II; nuclear envelope reforms around chromosomes.
- C
Anaphase I; sister chromatids separate to opposite poles.
- D
Metaphase II; sister chromatids align independently.
Explanation
During metaphase I, homologous chromosome pairs (tetrads) line up at the metaphase plate. Their random maternal/paternal orientation gives rise to independent assortment, the foundation of Mendel's second law.