The function of DNA ligase in recombinant technology is to
A. carry DNA into a new cell.
B. cut DNA into many fragments.
C. seal DNA into an opening created by restriction enzymes.
D. separate fragments of DNA by their length and electrical charges.
E. make millions of copies of a specific segment of DNA.
Answer: C
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During which meiotic phases does oogenesis arrest?
A. prophase I and metaphase II B. prophase I and prophase II C. metaphase I and prophase II D. metaphase I and metaphase II E. metaphase I and anaphase II
Which is NOT an example of a stimulus sensed by an interoceptor?
A. temperature B. vibration C. pain D. magnetism E. touch
The term facultative refers to
A. using chemicals for energy production. B. using light for energy production. C. the ability to exist in a wide range of conditions. D. using oxygen for metabolism. E. existing in a very narrow niche.
Cholesterol plaques in aging arteries and veins will lead to
a. beta amyloid deposits. b. changes in the electrolyte balance. c. elevated blood pressure. d. neurofibrillary tangles. e. a smaller heart.