A protein combined with cholesterol in the blood is an example of a(n) ____
a. irregular protein
b. lipoprotein
c. glycoprotein
d. denatured protein
e. collagen
ANSWER: b
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Which of the following characteristics of bacterial transcription is not true of eukaryotic transcription?
A. Specific factors are used to direct the polymerase to bind a specific type of promoter sequence. B. Abortive transcripts are formed prior to the elongation phase. C. RNA polymerase interacts with a single transcription factor during initiation. D. RNA polymerase interacts with DNA upstream from the coding sequence in the template. E. Transcription has distinct initiation, elongation, and termination phases.
Which is easier to establish in a pure-breeding population, a dominant or a recessive gene? What will be an ideal response?
A newspaper ad for a local toy store indicates that an inexpensive toy microscope available for a small child is able to magnify specimens nearly as much as the more costly microscope available in your college lab
What is the primary reason for the price difference? A) The toy microscope does not have the same fine control for focus of the specimen. B) The toy microscope magnifies a good deal, but has low resolution and therefore poor quality images. C) The college microscope produces greater contrast in the specimens. D) The toy microscope usually uses a different wavelength of light source.
________ are viruses that attack bacteria
A) HIV B) bacteriophage C) influenza D) adenovirus