Biotechnology companies have engineered hundreds of different types of mice, rats, pigs, goats, cattle, and rabbits to have genetic diseases similar to diseases of humans or to synthesize drugs and other biochemical products. They have patented these animals and are selling them to researchers for study and experimentation Comment on the benefits, safety, and ethics of creating new animals just for experimentation.
Answer to relevant QuestionsThe image shown here is a Gram stain of spinal fluid. What can you conclude about its appearance and how it came to look this way? a. Use the size bars to measure the cells in figure 4.32, 4.33, and Insight 4.2. b. Describe the shapes and arrangements of bacteria in figure 4.23 a, b, e, and f. Figure 4.23 a. Name two parasites that are transmitted in the cyst form. b. How must a non-cyst-forming pathogenic protozoan be transmitted? Why? a. Consult table 6.2, right-hand column to determine which viral diseases you have had and which ones you have been vaccinated against. b. Which viruses would more likely be possible oncoviruses and why would they be? Observe table 6.2 figures and determine which viruses are enveloped, which ones are naked, and which ones have an icosahedral capsid. Provide the sizes for the viruses illustrated there.
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