why do identical twins look exactly the same
Answers
identical twins happen when a single sperm fertilize a single egg that then splits in 2
each one goes on to grow into a baby but both the chair exactly the same genetic instructions(DNA)
What a great question! You have probably heard that your DNA contains the instructions for making you who you are. Things like your eye and hair color are controlled by your DNA.
This is why identical twins look so much alike -- they share the same DNA. And yet, they aren't exactly alike. They can be hard to tell apart but if you look closely, you see differences.
So what causes them to look slightly different if it isn't differences in their DNA? Identical twins have physical differences because when it comes to the way you look, both nature and nurture matter.
You may have heard the phrase "nature vs. nurture" before, but what exactly does it mean? This phrase refers to the two things that make you who you are. Your genes (nature) are important, but they are not the whole story. Your environment (nurture) also plays a big role.