Mitochondrial disorders can be caused by mutations in all the following except

A. cytoplasmic DNA
B. nuclear DNA
C. mitochondrial DNA


Answer: A

Biology & Microbiology

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The difference between innate immunity and adaptive immunity is that

A) adaptive immunity attacks pathogens; innate immunity attacks microbes. B) innate immunity targets cancers and transplants; adaptive immunity targets viruses and bacteria. C) innate immunity is fast and generalized; adaptive immunity is slow and specific. D) adaptive immunity releases cytokines; innate immunity produces antibodies.

Biology & Microbiology

The sternum is a major site of red blood cell formation; therefore, the bones in the sternum must be ____ bones

a. compact b. spongy c. cartilaginous d. fibrous e. synovial

Biology & Microbiology

Juanita was in an automobile accident and received a bad bump on her head. Although she had been a slender and calm person, after the accident she began to eat a lot and have emotional ups and downs. Her body temperature also fluctuated more dramatically

than in the past. What part of her brain is most likely damaged? A) cerebellum B) fornix C) midbrain D) hypothalamus

Biology & Microbiology

Many vitamins are important ________ of enzymes.

A. protein cofactors B. coenzymes C. allosteric inhibitors D. competitive inhibitors E. activators

Biology & Microbiology