In his experiments, Griffith found that transformation occurs naturally in bacteria. Explain how Griffith found this out.
What will be an ideal response?
Griffith found that the gene for a polysaccharide capsule in bacteria could be transferred to a harmless bacterium that had no coat, thus making the harmless bacterium virulent. Griffith found that bacteria can acquire genes from each other, a process called transformation.
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Which of the following flaviviruses can be prevented by vaccination?
A) yellow fever B) dengue fever C) hantavirus D) Ebola
A bacterium undergoes four rounds of replication. How many cells would result, and how many of those cells would
still have part of an original DNA strand from the starting bacterium?
What will be an ideal response?The trp and lac operons are both subject to forms of control that are typically called negative
Indicate whether the statement is true or false
In addition to vulvovaginal candidiasis, Candida albicans can also cause
a) thrush. b) warts. c) soft chancre. d) cold sores.