Risk indexes. Definition: Categories of risk used to calculate fundamental beta, including (1) market variability, (2) earnings variability, (3) low valuation, (4) immaturity and smallness, (5) growth orientation, and (6) financial risk.
(See figure below, where meiosis I begins with a diploid (2 n = 4) cell and ends with two haploid (n = 2) cells.) In humans (2 n = 46), who have 23 pairs of chromosomes, the number of chromosomes is reduced by half at the end of meiosis I (n = 23). Prophase I.
Mitosis and meiosis differ in their end products. Mitosis results in two cells, each genetically identical to the original. Meiosis, on the other hand, results in four cells, none of which is identical to the original. Each new cell has only half as many chromosomes as did the original.