DNA

[Ruskie]

I believe non identical twins would be the same as any brother and sister as regards dna, so there will be some differences.

Double check with Google to be sure.

[phil57]

As  a  matter  of  interest  would  twins have the same DNA.

Non-identical twins will share approximately 50% of their DNA with each other, depending on the amount they each randomly inherit from each parent, the same as regular siblings. They each originate from separate eggs fertilized by separate sperm.

Identical twins will, as their name suggests, be fully identical with each other, both sharing the same 50% of their parents' DNA, because they originate from a single egg fertilized by a single sperm, which splits into two embryos.

Happy New Year :-)