Understanding the steps of meiosis is essential to learning how errors occur. Researchers' initial understanding of meiosis was based upon careful observations of chromosome behavior using light ...

The development of maternal egg cells is pivotal for survival—but also precarious. During meiosis, the DNA-containing ...

A molar pregnancy, also known as a hydatidiform mole, is an abnormal human pregnancy with no embryo and an overgrowth of the ...

Welcome to Mitosis vs. Meiosis. This half of the screen illustrates mitosis—the division of a cell's nucleus. Along with cytokinesis (the division of the rest of a cell), mitosis results in a ...

This solution is called meiosis. Mitosis describes the process by which the nucleus of a cell divides to create two new nuclei, each containing an identical copy of DNA. (Cytokinesis describes the ...

During meiosis, sister chromatids produced by chromosome duplication are held together by Rec8, a meiosis-specific cohesion protein. Rec8 joins the whole length of the sister chromatids together ...

The four gametes produced in meiosis are genetically different. Independent assortment and the random nature of fertilisation lead to variation in living organisms – no two organisms are the ...