Fraternal twins:
a. Are similar to non-twin siblings in that they share about 50 of their genes
b. Are produced by separately fertilized eggs
c. Have concordance rates that are lower than monozygotic twins if there is a genetic component involved
d. All of the above
Question 2
Joe claims that he sees elves. If we put him in an fMRI during one of his experiences, where an elf danced in front of him, what would we see in the fMRI scan?
a. Heightened activity in the prefrontal cortex
b. Decreased activity in the parietal lobes
c. Increased activity in the occipital lobes
d. Reduced activity in the limbic system