During this third stage of meiosis I, the tetrads are pulled apart by the spindle fibers, each half becoming a dyad (in effect, a chromosome or two sister chromatids attached at the centromere). Assuming that nondisjunction (failure of chromosomes to separate) does not occur, half of the chromosomes in the cell will be maneuvered to one pole while the rest will be pulled to the opposite pole.
On Base Percentage (OBP) - On Base Percentage is similar to batting average but includes appearances which led to walks and times a hitter was hit by a pitch. It is calculated by adding Base Hits, Bases on Balls and Hit by Pitches, and dividing by the sum of At Bats, Bases on Balls, Hit by Pitches and Sacrifices.ases on Balls (BB) - The number of bases on balls (walks) issued by the pitcher. This does not include Intentional Bases on Balls (where the manager effectively instructs the pitcher to walk a batter for tactical reasons).
Quora User, I watch, read, and research baseball every day. It stands for Walks and Hits per Inning Pitched. It counts baserunners, excluding those who are hit by pitch, intentionally walked, or reach on an error. The lower a pitcher's WHIP, the better, as it means they allow fewer base runners per inning.