How does a phage transfer DNA from one bacterium to another?
a. Phages form a bridge between bacterial cells that allows DNA to pass from the host cell to the recipient cell.
b. Phages form a bridge between bacterial cells that allows DNA to pass in both directions between the two cells.
c. Phages lyse bacterial cells, releasing bacterial DNA into the environment, which is taken up by other phages
for transfer to new cells.
d. When phages assemble in an infected bacterial cell, they may incorporate host DNA; released phages may
attach to other cells and inject the bacterial DNA into those cells.
e. Phages attach to receptors on bacterial cells and receive some of the target cells’ DNA; the phages release this
DNA into the environment to be taken up by other bacterial cells.
ANSWER: d
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How did the control group differ from the
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The primary intracellular cation is ________.
Fill in the blank(s) with the appropriate word(s).
In a pedigree chart, a female who does not
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