As with most things in biology, the answer lies in evolution and natural selection. Sexual reproduction, with the shuffling of the decks through recombination during meiosis, generates the genetic ...

During anaphase I, the microtubules disassemble and contract; this, in turn, separates the homologous chromosomes such that the two chromosomes in each pair are pulled toward opposite ends of the ...

How Cells Divide. By Rick Groleau; Posted 10.09.01; NOVA; Most of the time, when a cell in our bodies divides, each new cell carries a complete set of chromosomes.

In the choreography of meiosis—the process responsible for sex cell division in all eukaryotic life—the pairing of homologous chromosomes (homologs) is essential. Errors in this process can lead to an ...