You spot your friend Enrique and yell to get his attention, but he can't hear you. As you get closer to him, you clearly hear loud music coming from his headphones. What should you warn him about?
What will be an ideal response?
If another person can hear the sound from the headphones, the sound is too loud, and loud noises can cause permanent hearing loss.
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HIV infection and the subsequent destruction of which cell type is most devastating to overall immune system function?
A. cytotoxic T cells B. memory B cells C. helper T cells D. monocytes E. natural killer cells
In the microarray shown in your book, the cDNAs were labeled with red and green fluorescent tags
How then do you end up with spots on the microarray emitting yellow light?
a. In light, red and green are two of the primary colors, and 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. This result 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.
Which of the following is NOT associated with
rheumatoid arthritis? a. autoimmune disorder. b. damage to lining of synovial joints c. women are more often affected d. can occur at any age e. crystals of uric acid accumulate in joints
The idea that alleles of a particular gene separate independently into individual gametes during meiosis is Mendel's principle of ________.
a. unit inheritance b. segregation c. independent assortment d. dominance