This blog is going to be about Biology. I am in Mr. Orre's class, and I will be doing Biology related blogs.
Wednesday, November 18, 2015
Coin Sex Lab Relate and Review
I learned about the difference between probability, and what actually happens during genetic inheritance. Coins were the alleles, and would land on a side randomly. This was showing how random some of the results could actually be. We also learned about how gene segregation affects the results of our experiment. We looked at homozygous and heterozygous traits, and determined the traits from the allele combination. We also did an experiment regarding a dihybrid cross, and that was the most difficult one in my opinion. During meiosis, chromosomes can go through recombination. This is when two chromosomes trade a piece of themselves, and this alters the gene possibilities. There are forty four autosomal chromosomes, and two sex chromosomes. The sex chromosomes are X-linked inheritance. We also saw monohybrid sets of genes in the start of our lab. One example of how the probability can be totally different from the outcome is our colorblind experiment. The probability was roughly twenty five percent of ten children would have colorblindness; however, five of our offspring had colorblindness. This means that we had an outcome of fifty percent. This means that probability is only effective to a certain extent. You can't determine what traits your child will have, but you are able to get a rough idea. Understanding this really makes understanding everyone's differences easy. It is quite amazing to see how so many different gene combinations can make everyone different. I now understand that it isn't possible to say that a baby will have blonde hair, but it is possible to say that there is a fifty percent probability of this child having blonde hair.
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