Asked by Anonymous
A student observes a cell where homologous chromosome pairs are lined up at the equator of the cell. What phase is this, and how does it contribute to variation?(1 point)
Metaphase II; chromatids separate randomly
Metaphase I; independent assortment occurs
Prophase II; DNA replication occurs
Anaphase I; sister chromatids separate
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Metaphase I; independent assortment occurs.
During metaphase I homologous chromosome pairs (tetrads) line up at the equator, and their random orientation leads to independent assortment of maternal and paternal chromosomes into gametes, increasing genetic variation.
During metaphase I homologous chromosome pairs (tetrads) line up at the equator, and their random orientation leads to independent assortment of maternal and paternal chromosomes into gametes, increasing genetic variation.
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