The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a computer-generated
A) Western blot.
B) DNA sequence.
C) freeze-fracture replica.
D) hydropathy plot.
E) prediction of glycosylation sites.
Answer: D
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Which one of the following would provide the most calories?
a. 2 grams of salt b. 3 grams of butter c. 4 grams of sugar d. 5 grams of hamburger
Answer the question using the accompanying graph. Which portion of the graph shows the activation energy in the
presence of enzyme?
a. A b. B c. C d. W + X e. Y + Z
Which statement about seedless vascular plants is true?
a. Seedless vascular plants tend to thrive in moist environments. b. Liverworts and horsetails are seedless vascular plants. c. Ferns are the earliest group of seedless vascular plants. d. Seedless vascular plants absorb nutrients through exposed surfaces.
In 2002, habitat patches that were connected by corridors had ____
a. six more species than isolated habitat patches had b. a total of six species c. six less species than isolated habitat patches had d. six more species than that patch had sustained the year before e. six less species than that patch had sustained the year before