A bacterial cell that is bio- met- leu+ thr- thi+ is infected by a virus carrying bacterial DNA containing
bio+ met+ leu- thr- thi+. If all five genes from the virally transduced DNA are recombined into the
recipient cell, what kinds of nutrients will the resulting cell still require from the medium in order to
grow?
What will be an ideal response?
If all five of the transduced genes recombine into the recipient DNA, the resulting cell will be bio+
met+ leu- thr- thi+. This means the cell will not be able to make its own leucine or threonine and will
require those nutrients in the medium.
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Organic molecules store _________ energy in their ______________ bonds
A. potential; ionic B. potential; covalent C. kinetic; ionic D. kinetic; covalent E. kinetic; hydrogen
A mutation in the Apetala1 gene, in Brassica
oleracea plants (wild cabbage) results in mutated flowers that a. have multiple female parts. b. have multiple male parts. c. have leaves instead of petals. d. have enormous size. e. burrow into the ground like peanuts.
Nutrients pass through this
a. A b. B c. C d. D e. E
What type of microscopy provides a three-dimensional view of the surface of an object?
A. transmission electron microscope B. scanning electron microscope C. compound light microscope D. phase contrast microscope E. ultraviolet microscope