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Tutor profile: Joseph W.

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Joseph W.
Experienced multi-subject tutor
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Questions

Subject: Writing

TutorMe
Question:

What is your best advice for writing a standard, run of the mill argumentative research paper?

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Joseph W.
Answer:

First and foremost, outline your entire topic/argument before you write anything; nothing is worse than writing half a paper and realizing you can't go any further with your current argument. Don't start with a specific statistic or piece of evidence, figure out what you want to argue, then go find supporting evidence from there. Once you have your thoughts together and have found enough supporting evidence to get started, outline the structure of your paper. Think about how long it needs to be, how many sources need to be included, how many "sections" you want the paper to have, etc. This way you can make sure your different sections and sources are spread out evenly. From there, all you have to do is get your thoughts in an order that makes sense and flows well, (I recommend planning out your transition sentences between paragraphs first, if you're having trouble with organization) write a thesis statement based on that, and fill in the gaps with your research!

Subject: Environmental Science

TutorMe
Question:

Describe the concept of symbiotic relationships; identify and briefly describe the three main types of symbiotic relationships.

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Joseph W.
Answer:

Symbiotic relationships are simply any interaction between two (or possibly a small number of) different organisms where at least one organism benefits. This is traditionally divided into three main symbiotic relationships: Mutualism (+, +): Both organisms benefit. A classic example of mutualism is bees and flowers; the flowers get to spread their pollen around, and the bees get nectar! Commensalism (+, 0): One organism benefits, the other is not affected. While one species in this situation is gaining something, the other is just keeping doing what they're doing. Parasitism (+, -): One organism benefits at the expense of the other. Parasites don't always kill their host, but always have at least some negative effect on their host. Parasites are often specialized to a specific host, like toxoplasma needing felines (cats) to reproduce, while others like mosquitos are notoriously not-picky about their host choice.

Subject: Biology

TutorMe
Question:

Identify and describe the function of the major enzymes involved in DNA replication.

Inactive
Joseph W.
Answer:

Topoisomerase--untwists the helical structure of DNA ahead of replication fork; essentially "flattens out" the twisted DNA so other enzymes can access it DNA Helicase--unwinds DNA, splitting double stranded DNA into two strands Single Stranded binding proteins--attach to and stabilize each strand of separated DNA; this is what prevents the strands from reconnecting RNA Primase--places an RNA primer down on the DNA strand to use as a "starting point" for replication DNA Polymerase III-- starting at the primer, starts replicating DNA by adding a complimentary nucleotide (A + T and G + C) to the existing strand DNA Polymerase I--replaces the RNA primer with its DNA equivalent DNA Ligase--seals the "nicks," or small gaps between the DNA that replaced the primer and the DNA added by Polymerase III, by creating a phosphodiester bond.

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