Identical twins will have the e physical features such as hair color and eye color, because they were formed from the exact same egg and sperm. Fraternal twins are formed from two different eggs and sperm, so those twins will look different from each other.
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Fraternal twin or dizygotic, develop when two different eggs are fertilized by two different sperm. Fraternal twins will not have the same DNA. When twins are a boy and a girl, they are fraternal twins, as they do not have the same DNA. A boy has an XY chromosome while the girl has XX chromosomes.
On the other hand, identical twins happen when one egg fertilized by one sperm, but in the early development, the egg splits into two embryos. Because identical twins come from one egg and one sperm, they have the same DNA.
When it comes to physical characteristics such as hair and facial feature, the identical twins would have the same physical feature as they have the same DNA, they share 100% of the genetic materials. If there are any visible differences it because of external factors such as scars and hairstyles.
Fraternal twins as they come from different egg and sperm, they do not have the same DNA. They may have differences in physical appearance such as skin tone, hair color, and body build.
Identical twin https://brainly.com/question/1370326
Fraternal twin https://brainly.com/question/5594352
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