Jonathan and Jerry are identical twins. Jonathan has been diagnosed with schizophrenia but Jerry has not. Which
of the following explains how this might occur?
They developed from two separate fertilized eggs.
They had separate placentas during prenatal development.
While they have the same genes, they do not have the same number of those genes repeated in their genome.
They are fraternal twins, not identical twins.

they developed from the two separate fertilized eggs.

Explanation:

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

this is a good question! i'll do some research and come back when i have the answer!