In this unit, I learned about reproduction. I mainly learned about how certain cells reproduce in cycles such as mitosis and meiosis, and how to find the probability of new organisms. Punnett squares and gene inheritance, like recessive, codominant, dominant, and X and Y chromosome rules, were the easiest to remember because I had already learned about them in seventh grade. Remembering all the steps in mitosis and meiosis and their difference is a lot harder because there is a lot more new and tricky information to remember. I did not learn any new information from doing the inforgraphic because the information that I used in it was from the vodcasts, but doing the inforgraphic did reinforce all the information and helped me remember it a lot easier. Also, the pictures helped me see the information a lot better and help me remember a lot more of it. I am a better student today than I was before because I now know I learn and remember science a lot better when I can picture it and clearly see it in my head, which the infographic helped me to do. I want to learn more about DNA.
My preferred learning style is being hands on. I kind of already knew that, but I was surprised on how much more I was kinesthetic than everything else. To take in information, I should use all my senses, hands-on approaches to learning, and trial and error exercises. To study, I should put real life examples into my work and put pictures to illustrate an idea. To perform well on a test, I should role play the exam.
Wednesday, November 18, 2015
Monday, November 16, 2015
Coin Lab Relate and Review
In this lab, we explored genetics possibilities for a possible child between two students. Coins served as a model for the genetic concept of randomness, or the law of independent assortment. The coins also showed recombination, which is the rearrangement of genetic material, especially by crossing over in chromosomes or by the artificial joining of segments of DNA from different organisms. Recombination often occurs during meiosis. We first found the probability of getting certain alleles for different genes. Monohybrid crosses were a lot simpler to predict, especially if they were homozygous, because they did not rely on other factors, like diyhybrid crosses. In our autosomal experiment, were we crossed two double heterozygous alleles, we predicted that the the ratio of phenotypes would be 9:3:3:1. I claimed that the results would be very similar to what we predicted, but not the exact same because of the randomness of the experiment. Our results had the ratio 10:2:3:1, which supports my claim because it is very similar to what we predicted but slightly different due to the randomness of the experiment. In our X-linked inheritance experiment about colorblindness, we had similar results. There are some limitations while relying on probability. Probability can say what is possible, but it can not say what will happen in actuality. Also, sometimes there are too many possible combinations for punnet squares and/or other probability tools to be useful, such as predicting all the major alleles that will show up in a child. Lastly, like in this experiment, when a dominant allele showed up, we assumed it was heterozygous, but we did not know for sure, leaving out punnet squares and probability open to error. In real life, this could help me predict whether or not I have some genetic diseases or disorders. This would be helpful so I can detect them ahead of time and get treated a lot faster and better. Also, I were to have a child, it would help me to find ways to avoid having them inherit genetic diseases or disorders, or it would help me predict what my child would look like.
Tuesday, November 10, 2015
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