Sodium dodecyl sulfate (SDS) is a detergent commonly added to protein samples before gel electrophoresis. The purpose of the negatively charged SDS is to neutralize the charges and denature the protein to remove secondary structures
Thus, the proteins can be separated on a gel based solely on what parameter?
size or molecular weight
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Four of the five answers can be detected by testing the urine. Select the exception
a. ovulation b. pregnancy c. water-soluble drug use d. exposure to pollutants e. white blood cell count
In a process known as the ________, the rise and fall of water depth with tidal cycles bring nutrients into coastal marshes from coastal ocean waters
Fill in the blank(s) with correct word
What feature is common to all the alveolates?
A. Autotrophy B. Lung-like sacs used for respiration C. Bioluminescence D. Complex life cycle with two hosts E. Membrane-bound sacs beneath the plasma membrane
Which of the following statements is FALSE?
A) Antimicrobial therapy for hemodialysis-associated infections increases antibiotic resistance. B) S. aureus is differentiated from other mannitol+ cocci by the coagulase test. C) The M in MRSA stands for mannitol. D) The USA100 strain accounts for most hospital-acquired MRSA. E) The USA300 strain accounts for most community-acquired MRSA.