Monozygotic twin concordance values are less than 100% in both bipolar disorder and schizophrenia. This suggests

that these disorders ____.
a. are strictly polygenic
b. have environmental components
c. are X-linked
d. genetically dominant
e. are not genetically based


b

Biology & Microbiology

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If a gene product is not a protein but a noncoding RNA, the sequence might be initially hypothesized from comparative genomics but must be confirmed how?

What will be an ideal response?

Biology & Microbiology

Which food is rich in complex carbohydrates?

A) pasta B) table sugar C) margarine D) cheese

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The site of formation of pollen grains is in the

a) receptacle. b) stamen. c) sepal. d) carpel. e) petal.

Biology & Microbiology

Which of the following statements concerning allografts is TRUE?

A. They are the best type of transplants because they are not associated with rejection. B. They induce strong type IV hypersensitivity reactions and must be treated with immunosuppressive drugs. C. They always require complete destruction of the recipient's bone marrow cells. D. They are impossible to perform because the antigens between donor and recipient are so different. E. They are the rarest type of transplants.

Biology & Microbiology