3.- The Seven Myths You Still Believe About Genetics- https://www.youtube.com/watch?v=Jxz7lB-R0PE

Every person has different genes

Although it is extremely rare, it can happen due to

Certain traits skip a generation

There are beneficial genetic mutation

Environmental factors can produce transmissible genetic defects only if they affect to gametes

If you are the only member of your family who suffer a disease, you can claim that it is not transmissible