trezor.io
Rate this file (Rating : 5 / 5 with 1 votes)
twin sisters
trezor.io

Twin Sisters

Half-identical or semi-identical twins (also referred to as "half twins") are the result of a very rare form of twinning in which the twins inherit exactly the same genes from their mother but different genes from their father. Although examples of half-identical twins have been found, the exact mechanism of their conception is not well-understood, but could theoretically occur in polar body twinning where sperm cells fertilize both the ovum and the second polar body.
This situation is not the same as the common form of fraternal twinning, in which two genetically different ova are fertilized by two genetically different sperm. In this case, the ova are genetically identical.
• Types
There are two mechanisms by which this might happen:

File information
Filename:453222.jpg
Album name:People & Humanity
Rating (1 votes):55555
Keywords:#twin #sisters
Filesize:54 KiB
Date added:Feb 03, 2012
Dimensions:460 x 600 pixels
Displayed:228 times
URL:displayimage.php?pid=453222
Favorites:Add to Favorites