The molecule needed to allow a cell to transfer genetic information from RNA to DNA is
A. DNA polymerase.
B. RNA polymerase.
C. reverse transcriptase.
D. chlorophyll.
Ans: C. reverse transcriptase.
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A microbiologist studying the human microbiome is interested in how a particular bacterial species may impact water absorption in the large intestine. Which of the following models is appropriate for this investigation?
A. A normal mouse colonized with enteric microbiota found in the human colon. B. A germfree mouse inoculated with human microbiota shortly after birth. C. A human volunteer who is a carrier of that particular bacterial species. D. A germfree mouse raised in a sterile environment.
What are the four key facts of weight regulation? (in terms of set point)
What will be an ideal response?
A bacterial ________ is the nontranscribed region of the DNA to which RNA polymerase binds in order to initiate transcription.
A. initiator B. operator C. operon D. promoter
Of the three diseases caused by Yersinia pestis, only (bubonic/black/pneumonic) plague is communicable between humans.
Fill in the blank(s) with the appropriate word(s).