Whether eye dilation during an exam is necessary depends on the reason for your exam, your age, your overall health and your risk of eye diseases. The eyedrops used for dilation cause your pupils to widen, allowing in more light and giving your doctor a better view of the back of your eye. Eye dilation assists your doctor in diagnosing common diseases and conditions, possibly at their earliest stages. They include:
In meiosis, DNA replication is followed by two rounds of cell division to produce four daughter cells each with half the number of chromosomes as the original parent cell.
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells â sperm in males, eggs in females. 1  During meiosis one cell divides twice to form four daughter cells. 2  These four daughter cells only have half the number of chromosomes of the parent cell â they are haploid.  Meiosis produces our sex cells or gametes (eggs in females and sperm in males).