Diseases
Various disorders can arise from defects in the fertilization process.
- Polyspermy results from multiple sperm fertilizing an egg.
However, some researchers have found that in rare pairs of fraternal twins, their origin might have been from the fertilization of one egg cell from the mother and eight sperm cells from the father. This possibility has been investigated by computer simulations of the fertilization process.
Read more about this topic: Human Fertilization
Famous quotes containing the word diseases:
“The fantasies inspired by TB in the last century, by cancer now, are responses to a disease thought to be intractable and capricious—that is, a disease not understood—in an era in which medicine’s central premise is that all diseases can be cured.”
—Susan Sontag (b. 1933)
“Arrogance, pedantry, and dogmatism ... the occupational diseases of those who spend their lives directing the intellects of the young.”
—Henry S. Canby (1878–1961)
“But what is quackery? It is commonly an attempt to cure the diseases of a man by addressing his body alone. There is need of a physician who shall minister to both soul and body at once, that is, to man. Now he falls between two stools.”
—Henry David Thoreau (1817–1862)