First meiosis phase {prophase, meiosis} has synapsis, replication, and tetrad formation. First, homologous chromosomes have synapsis. Then all chromosomes replicate, by semiconservative replication, except at chromosome centromere, where chromosome pairs remain attached. Then homologous, doubled chromosomes synapse to make tetrads.
Biological Sciences>Cell>Cell Cycle>Meiosis
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Date Modified: 2022.0224