Both the hereditary as well as environmental influences on the development of schizophrenia in the Genain quadruplets were documented using which research method?

A person is given a list of items to recall. According to the ________ effect, recall of items at the beginning and end of the list should be better than recall of items appearing in the middle

FIll in the blank with correct word.

Rodlike structures called __________ store and transmit genetic information

A) phenotypes B) chromosomes C) genotypes D) genes