You are SCUBA diving in deep water and accidentally cut yourself. Your blood appears blue. Why?
A) Blue light is filtered out at this depth.
B) Your blood changes color due to the pressure at this depth.
C) Red light is filtered out at this depth.
D) Oxygen has been pressurized out of your blood at this depth.
C
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What is the basis for inferring infection of a pathogen when a serological EIA is performed? In this context, what does a positive result indicate?
What will be an ideal response?
Which of the following is not true of the three operators of the lac operon?
A. One of the operators is contained within the lacZ gene. B. All three operators are bound simultaneously by the Lac repressor to repress the expression of the operon. C. The DNA between the operators bound by the Lac repressor is looped out to sterically hinder RNA polymerase. D. Two of the three operators are upstream of the transcriptional start site.
________ will only cross a plasma membrane using facilitated diffusion
Fill in the blank(s) with the appropriate word(s).
A lysosomal storage disease is caused by
A) failure of the cell to produce lysosomes. B) the inability to synthesize glycolipids. C) mutations in genes for lysosomic membrane proteins. D) an excess in the production of lysosomic digestive enzymes. E) mutations in genes that code for lysosomic digestive enzymes.