1. There are two types of viruses, DNA viruses and RNA viruses, and each group has subgroups
that utilize different nucleic acid biosynthetic pathways. Which of these two types of viruses do
you think is responsible for the deadliest human disease(s)? Specify the disease(s), the viruses,
and their biosynthetic pathways. Please explain why you think this or these are the deadliest and
give examples from each subgroup to support your answer. Has the group of deadliest diseases
changed over time? If so, why do you think this is true?
2 .Alice is a 70 year old woman with low vitamin D levels who recently broke a hip. She has os teoporosis. She was given several medications to try to improve bone density, however, they
were unsuccessful as she could not tolerate the medications. What hormone might she be given
to treat the osteoporosis? How does this medication help? How would this be effected by a low
TSH?
3. Darren is a 15 year old, tall for his age, but he wants to build more muscle. He decides that he
will eat only protein foods, because he says, “muscle is protein, so protein will make protein, and
the more protein, the more muscle.” In part he is correct, and in part incorrect. Explain, and name
the hormones involved in protein metabolism; state how each affects protein metabolism.
4. Kay and Lucia are best friends and enjoy spending time together over the holidays decorating
and preparing for visits by their extended family. Kay recently visited her physician for an annual
check-up and received news that she was pre-diabetic and that she should monitor her calorie in take, especially with the holidays close at hand. Kay was troubled by the news but Lucia was
even more so since she had been admonishing Kay for unhealthy eating and exercise habits for
years. Lucia was also particularly distressed because she has worn an insulin pump since she was
nine years old. Kay’s remark about the news was, “Well, Lucia, this is great, now I can be even
more like you!”

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