The recognition site for a restriction enzyme is 5? ACCGG^T 3?. The ^ symbol indicates the site of cleavage. After digestion of DNA with this restriction enzyme, how will the ends of the resulting DNA fragments look?
A) They will have sticky, single-stranded ends with 5? overhangs.
B) They will have sticky, single-stranded ends with 3? overhangs.
C) They will have blunt ends.
D) They will have sticky, double-stranded ends.
E) The result cannot be predicted using only the information given.
A) They will have sticky, single-stranded ends with 5? overhangs.
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A microbiologist obtained two pure isolated biological samples: one of a virus, and one of a viroid. The labels came off during a move from one lab to the next, however
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The major body part(s) derived from ectoderm is/are
A) the nervous system and skin. B) bone tissue. C) the respiratory tract, urinary bladder, and urethra. D) the liver and pancreas.
Which physiological process allows many organisms to maintain relatively constant conditions within their cells and
tissues?
a. torpor b. homeostatic responses c. facultative responses d. behavioral adaptations e. photosynthesis
Which plant is a perennial?
A) peony B) morning glory C) petunia D) pansy