A leading factor in eating disorder is substantial given by family members to a person who has lost significant weight and who is thus thought to have demonstrated great self-control

If schizophrenia depended solely on genetic make-up, then compared to rates of schizophrenia in siblings in general, "fraternal" twins should have:

A) four times the concordance rate for schizophrenia. B) twice the concordance rate for schizophrenia. C) the same concordance rate for schizophrenia. D) half the concordance rate for schizophrenia.

Which of the following is a short segment of DNA that determines the rate at which a protein will be synthesized by a particular structural gene?

A) ribosome B) enhancer C) codon D) nucleotide E) codon segment