The mechanism of pathogenesis by prions may involve a conformational change in the prion protein (PrP) to an abnormal form.
Answer the following statement true (T) or false (F)
True
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In the microarray shown in the textbook, the cDNAs were labeled with red and green fluorescent tags. Why do some
spots on the microarray emit yellow light?
a. Red and green are two of the primary colors, and if both cDNAs hybridize to the spot, the combination of the two will produce yellow light. b. The yellow light comes from the laser, and a yellow spot indicates that neither cDNA hybridized to that spot on the microarray. c. The over expression of one cDNA relative to the other will skew the color pattern of the spot on the microarray, resulting in the yellow color. d. The color choice was an arbitrary decision by the artist and doesn't reflect how the process actually works. e. Yellow spots are those that contain no DNA probes on the chip.
Nematodes
A. have a pseudocoelom. B. are bilaterally symmetrical. C. have a mouth and an anus. D. All of the above are correct.
Which of the following best describes the overall scheme of typical plant development?
a. Growing tips and zones are present throughout a plant's life, and final plant form is not influenced by the environment. b. Growing tips and zones are present throughout a plant's life, and plant bodies do not have a fixed final size. c. Plant bodies do not have a fixed final size, and final plant form is not influenced by the environment. d. Plant bodies have a fixed fi
A population:
a. is the unit of evolution b. consists of interbreeding members of the same species c. shares the same gene pool d. grows at an exponential rate when the birth rate exceeds the death rate at a constant differential, no matter how slight the difference. e. all of the above