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Question 1: Explain why only certain cell types are permissive for transcription of HIV proviral DNA. What cellular factors are involved and why?
Question 2: What are the selective advantages and disadvantages for DNA viruses in relying on host cell apparatus for production of mRNAs and replication of their genomes? Give examples of host cell apparatus required.
Question 3: DNA viruses generally possess a precisely ordered and temporal sequence of transcription of viral genes. Why is this control necessary and beneficial to the virus? By what molecular mechanisms do viral proteins help mediate this control? Give specific examples.
Question 4: DNA viruses are heavily reliant on the host for providing factors required for replication. Replication of eukaryotic DNA is a very precisely regulated process and normally only occurs prior to mitosis. Therefore, viruses have evolved a number of mechanisms for enabling viral DNA synthesis when the host cell is in the Go state. Describe elements of one such mechanism and why they are required for viral replication. What are the advantages for the virus?
Question 5: Many DNA viruses possess latent infectious cycles. What are the characteristics of a latent infection and how does a latent virus alter both its production of RNA and replication to maintain the latent infection?
Question 6: What are the complications/obstacles for a single stranded DNA virus to replicate its genome. Describe mechanisms a specific virus uses to overcome these obstacles.
Angel is a biologist studying Lake Ecosystem in which leaf-eating insects are consumed by fish, which are consumed by snakes, which are consumed by hawks. In this case, how would you categorize a fish.
Though the bone was properly set, by the time boy was 16 it was apparent that the injured lower limb was shorter than normal one. Elucidate why this difference occurred. What caused her symptoms? Was her condition because of an infection or intoxicat..
Which is likely explains the genetic uniqueness of this population. Following accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. What nerve damage did he maintain.
Which groups of foods are underrepresented or overrepresented in your diet? If you did not consume the recommended number of servings from each group, explain why. Propose how you might consume the recommended number of servings from each group in th..
What have to be true of the cell wall of this bacterium? Mammalian blood contains an equivalent of 0.15 M. Seawater contains the equal of 0.45 M. What will occur if red blood cells are transferred to seawater.
Eukaryotes, one complete set of nuclear chromosomes Note that Eukaryotes also possess a mitochondrial genome thus plants have a chloroplast genome and a mitochondrial genome What about fungi? What is the source of those organellar genomes.
Suppose you have a light chain genome with 64V regions and 8J regions. If you had repeated attempts at recombination, how many dissimilar attempts would be made when the middle region of both V and J is the segment chosen at each recombination.
Do you think biochemical testing must be recommended to detect the deleterious gene in Mrs. Lehman. Which one increased their alveolar ventilation, or do they stay the same? Why with appropriate reason.
How will each of these components be digested? Where within the digestive system will they be digested? Are any accessory organs involved.
Suppose you are a geneticist and you're asked to examine the effects of a radiation leak that occurred at a facility in Iraq several years ago. How will you assess the level of mutations caused by this leak.
List two possible mutations that might cause this phenotype. Be as specific as possible about the location of mutation. What led physician to make this diagnosis, and what might have caused the sudden attack.
Two linked genes, S and T, are separated by 8 cM. Peter, who has the genotype ST/st, marries Oliviam who is st/st. peter's father was ST/ST. what is the probability that peter and olivia's first child will be St/st? What is the possibility that their..
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