Sites that are not unique. 1  Aggregators/ collections. 2  Something everyone on the internet already knows about (e.g., Netflix, Khan Academy, etc.) 3  Something not unique (includes generators, blogs, tumblrs, etc.) 4  Web games. Post to /r/webgames instead.  Articles or videos.
For example, cells in the human body have 46 chromosomes in total (this includes two sex chromosomes; XX for women and XY for men). However, human sperm and egg cells produced through meiosis only have 23 chromosomes. âMeiosis is reductional,â said M. Andrew Hoyt, a professor of biology at Johns Hopkins University. Meiosis produces daughter cells that have half the number of chromosomes as the parent cell. Thus, when fertilization occurs, the chromosome number is restored. For example, when the human sperm and egg combine during fertilization, they produce a zygote, a cell with 46 chromosomes.
Cell division is a form of reproduction, but each resulting cell in normal cell division is identical to the original. Normal cell division is called mitosis, and this results in two identical cells. These cells continue life and perform the same functions as the original cell. They grow and eventually undergo division themselves. This is the type of division for most cells. The other type of cell division is called meiosis, and it is how the body produces eggs or sperm. The process is the same for both males and females.