Which of the following is not an autosomal recessive disorder?
A. sickle-cell disease
B. Marfan syndrome
C. cystic fibrosis
D. Tay-Sachs disease
E. All are autosomal recessive disorders.
Answer: B
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Which of the following regions produces hormones that are secreted by the pituitary gland?
A. cerebrum B. cerebellum C. thalamus D. hypothalamus E. medulla oblongata
DNA Polymerase I
A. removes primers. B. adds bases to new DNA chain. C. proofreads DNA chain. D. seals DNA gaps.
Western blotting is an immunological test used to identify the antigens in an individual suspected of having Lyme disease.
a. true b. false
Which of the following statements concerning infection with Toxoplasma is FALSE?
A) It is one of the world's most widely distributed protozoan parasites in humans. B) It is typically contracted by eating undercooked meat. C) Even though it can be transmitted across the placenta, it is harmless to the fetus. D) The majority of infected people are asymptomatic. E) It usually results in no permanent damage and is self-limiting.