Recent Tutoring Session Reviews
"We discussed meiosis, both a global view and the detailed stages of the process. The student was initially struggling with some of the concepts related to cell division but picked up explanations quickly, and had no trouble by the end of the session."
"This session the student and I performed a determination of whether offspring will be a homozygous dominant or homozygous recessive genotype and I covered the phenotypes associated with the various crosses."
"The student has not received his transcription/translation quiz back yet. I told him to take some pictures of it as soon as he does. He has no test this upcoming week according to the syllabus. Today in class he did a restriction lab with classmates...One thing I told the student is even though one person turns in a copy for the whole group he should write the answers on his lab as well so he can go over it. His restriction lab sheets were blank because they were not the copy that was being turned in. Today we went through a medical article, "Closing In on Cystic Fibrosis", with a follow-up questionnaire due Wednesday. We took turns reading paragraph by paragraph in silence and then asking for the student to summarize what he read. Anything unclear or misread, I explained. This article was definitely a more challenging read regarding genes, transport channels, and gene therapy, but I was impressed with his reading comprehension and ability to understand the recessive nature of cystic fibrosis. I showed him the genetic probability of this disease through a Punnett square, which he remembered from a previous chapter. We went through the questions and he applied what he read very nicely. In the article they used a cold virus as a vector rather than a bacterial plasmid so that difference was highlighted. Since we had extra time we covered the next topic in class which was a DNA fingerprinting exercise with Southern Blots. Paternity and finding a victim to a crime are the two cases where this method is used. I related the Southern Blot technique to a tattoo that can be seen with a black light, which related to radioactive complementary gene sequences and X-rays. Once again we went over recognition site and restriction enzymes (these two things he understands conceptually, but is having a hard time recalling the words "recognition site" and "restriction enzyme" so flashcards were made of these). The teacher's homework later in the week is for him to watch two videos out of several choices online. I told the student the "Restriction Enzyme Review", "Gel Electrophoresis", and "How to create a DNA Fingerprint" are the most beneficial for him and that he should watch those. If he has free time there is a "Human Genome", which I think would be a fascinating one for him to watch because it ties everything we've learned together in a real world application. Overall, best session yet. Seems like he is getting a bit more familiar with material."