Spongiform encephalopathies are caused by an infectious variant of the protein PrP. Which of the following is the infectious form?
a. PrP
b. PrPC
c. PrPSC
d. PrPSE
c. PrPSC
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The name given to double-stranded DNA that is twisted upon itself is ________.
Fill in the blank(s) with the appropriate word(s).
The quantity 8 applies to which of these groupings?
a. tarsal bones b. metacarpals c. metatarsals d. carpal bones e. upper limbs
An inherited disease results from abnormal mitochondria passed from mother to child. Using your knowledge of mitochondria's function within human cells, which of the following is the most likely description of the symptoms of this disease?
a) color blindness b) inability to absorb iron, resulting in extreme anemia c) extreme sensitivity to mutagens such as x-rays and sunlight, increasing the chance of cancer d) fragile bones and arthritis e) extreme muscle weakness
ALL hyperthermophiles with growth temperature optima above 100°C are found at
a. terrestrial hot sulfur springs. b. the open ocean. c. geothermally heated soil. d. hydrothermal vents.