Gene transfer that requires cell-to-cell contact is

A. transformation.
B. competency.
C. conjugation.
D. functional genomics


C

Biology & Microbiology

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I am a ribonucleoprotein; I contain both a polypeptide and an RNA molecule. My RNA binds to unique sequences on a DNA molecule, targeting them for cleavage by my polypeptide. I occur naturally in microbes to protect against viral attack, and I can be engineered in the lab for precision DNA editing.  What am I?

A. Cas9 nuclease B. EcoR1 restriction enzyme C. 3' oligonucleotide D. RNA polymerase

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Where does transcription take place in a typical eukaryotic cell?

a. the nucleus b. ribosomes c. the cytoplasm d. ribosomes and the cytoplasm

Biology & Microbiology

The resting potential across a typical neuron membrane is approximately ____ inside relative to outside.

A. ?70 microvolts B. ?70 millivolts C. ?70 volts D. +70 millivolts E. +70 megavolts

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Which of the following consume other living organisms?

I) primary producers II) herbivores III) carnivores IV) decomposers A) only II and III B) only I and IV C) only I, II, and IV D) only II, III, and IV E) only I, II, and III

Biology & Microbiology