Meiosis produces sperm and eggs with exactly half the chromosome number of the individual producing the gametes. To ensure that each gamete has one copy of each chromosome pair, the diploid cell ...

As viewed from a human perspective, nature has done some ingenious engineering to overcome some of the obstacles it has faced. Take the evolution of sex, for instance. To make the move from asexual to ...

In eukaryotes, sister chromatid cohesion is established during S phase and is maintained throughout G2 until the M phase. During mitosis, this cohesion is destroyed along the entire length of the ...