Exactly what your blood sugar level should be two hours after meals is up for debate. As of 2015, ACE guidelines call for the tightest control, with two-hour readings below 140 mg/dl. The Joslin Diabetes Center and the American Diabetes Association suggest postmeal readings below 180 mg/dl.
Reproductive cells, or gametes-sperm and eggs-have half as many chromosomes as somatic cells, or one set of 23 chromosomes in humans. The number of chromosomes in somatic cells varies widely among species: 18 in cabbage plants, 48 in chimpanzees, 56 in elephants, 90 in hedgehogs, and 148 in one species of alga.
There are two kinds of sperm: X and Y. If a X-sperm fertilizes the egg, a baby girl is conceived; if a Y-sperm does the job, a baby boy is conceived. Semen contains virtually equal numbers of X and Y sperm -- yes, even fathers of all boys or all girls have both X and Y sperm! Ovary - The egg comes from here.