TIL identical twins can’t (in most cases) be differentiated using DNA.
Comment on DNAddy
The_v@lemmy.world 2 weeks agoDNA sample of identical twin doesn’t work. It is identical. They started as one individual and split into two.
The only way to tell them apart is if one of the brother has a distinguishable difference in scars, dentistry, etc.
zstg@programming.dev 2 weeks ago
The_v@lemmy.world 2 weeks ago
Identical twins - one egg + 1 sperm that splits into two after fertilization aka clones. This happens randomly in the population.
Fraternal twin - Two different eggs + 2 different sperm from daddy. They are siblings that happen to share a uterus. This genetic in some families.
Semi-identical twins - One egg + 2 sperm. The egg splits before it is fertilized. The genetically identical eggs are fertilized by different sperm. Freaky huh…
Trainguyrom@reddthat.com 2 weeks ago
Dang I must be misremembering the specifics