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As we have discussed in class, individual phylogenetic methods are best suited to particular kinds of problems. For each of the following data sets, assess the suitability of maximum parsimony to that data set. Then do likewise for maximum likelihood. Clearly explain your reasoning in each case. (Note: some data sets may be suitable for both maximum parsimony and maximum likelihood, while other data sets may not be suitable for either method.) A researcher wants to reconstruct the evolutionary history of a 500-bp noncoding region. Her data consist of 15 DNA sequences representing a broad sample of eukaryotic organisms. A biomedical research group is studying the evolution of HIV (the virus that causes AIDS). Their data consist of 700 RNA sequences, each approximately 8 Mb long. In addition, the genomic region they are studying involves extensive recombination and transfer of genetic information from one strain to another. An ecologist wants to reconstruct the evolutionary history of the chytrid fungus currently infecting amphibian populations worldwide. His data consist of 10 samples from each of 50 populations, focusing on a 6-kb intron within a specific gene. Note that the chytrid epidemic is believed to have begun in the early to mid-1970s.
Assume you are an ecologist studying the effects of acid precipitation on plant life. Explain an experiment you would perform in order to determine which plant species will be a useful indicator species for acid rain pollution.
Explain the quality parameters of the medical image quality. Explain the procedure of the digital medical image.
Using this information, what two strategies can you use to isolate the giraffe's gene from its genomic library. If only females are found to be black, what were genotypes of the parents.
The concept of vitalism is based on the belief in a life force outside the jurisdiction of physical and chemical laws. According to this belief, organic compounds are able to arise only within living organisms. Which did the most to refute the concep..
It also makes an antidote molecule called brevenal that binds to sodium channels and protects them against the toxin. Brevenal may end up being a treatment for CF; in a sheep CF model, brevenal blocked bronchoconstriction and enhanced the clearance o..
In turtles, brown shells and the red legs are most prevalent forms of the traits. Occasionally, green shells and yellow legs are examined.
What is one way you might get bacteria of part b growing again without changing the medium. What result could be predicted if you were to transfer the bacteria of part a to the medium containing only unsaturated fatty acids without making any other ..
Explain the challenges and advantages of having internal gills over external gills for gas exchange? Explain how increased stress levels can affect hormones which ultimately inhibit the immune system? Include all relevant glands and hormones in you..
Pathways that have an overall energy requirement are referred to as.
Which food item would cook the fastest and why with reason. What are the similarities between G-protein receptor systems and Tyrosine-kinase receptor systems.
Examine how the pancreatic endocrine hormones glucagon and insulin work antagonistically to maintain homeostasis in the body, throughout times of feast and times of famine.
A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and then incubates each drug dilution series with a standard amount of a patient's isolated pathogen. What is this micro biologist setting up.
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