A. Iris colour.
B. Blood group.
C. Hair color
Persons shown in the photograph represents identical twins.
Identical twins will not have same fingerprints.
- They are two offspring produced by the same pregnancy.
Twins can be either monozygotic (“identical”), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic (“fraternal”), meaning that they develop from two different eggs. In fraternal twins, each twin is fertilized by its own sperm cell.
- Dizygotic twins, like any other siblings, have an extremely small chance of having the same chromosome profile.
- Monozygotic twins are genetically nearly identical(similar DNA) and they are always the same sex.
Things like your eye and hair color are controlled by your DNA.
They have same blood group.
Some identical twins can have different heights and weights. This is because height and weight are controlled by what you eat as well your DNA.
Another physical difference between identical twins is their fingerprints. This is because environmental differences like how the hand of the fetus touches the amniotic sac also affects fingerprints.