Blog #14

What was you favorite activity/topic this year? Why was it a favorite?
What was your least favorite? Why?
If you could change one thing (Not the amount of homework) what would it be and how would you change it?


My favorite activity or topic this year was microscopes because I learned how things look such as bacteria or the stuff growing in an onion or my saliva. It was really interesting how we got to know how to use a microscope because I felt a professional scientist when I was looking at the microscope inside.
Especially the time when we say the pond water moving a little, it was actually the bacteria inside because the pool water was way to dirty so looking at in the microscope was actually a good way to know never to fall inside the pond in whenever you see mainly in the park where the ducks and frogs live in.


My least favorite topic is the meiosis, mitosis, The Kreb's Cycle, and even the Calvin Cycle mainly because there are so much procedures you need to remember and it is hard for me to remember so much when it is about the same thing over and over. All the procedure of the different cycles all confuse me because they are similar. For example, meiosis and mitosis is a little bit similar and so is the word!! It is also hard for me to understand sometimes but not the part when the chromosomes split or anything, yet the process confuses me sometimes. It also confuses me with the words such as NADPH, ADP, ATP and etc.

If I could change one thing in biology class, I would read more and try to understand more about the cycles and the topics that have procedures in it. I would make index cards to keep me understanding better about the process and what they are for. For example, mitosis happens in people's bodies but to me, I think I just have to learn the basics. Basics can describe other stuff like I need to change my toothpaste every six months to keep the bacteria away.

Blog #13 DNA

Blog #13 How has DNA changed how we investigate crimes? What are the two main tests? Describe them

First of all, DNA changed how we investigate crimes drastically compared from before like the 1700s. DNA testing can help women to investigate who raped them by doing a DNA testing if they aren't too embarassed too go get checked. However, DNA testing can help other crimes than rape. For example, it can also help the people who got robbed in their house by seeing if the robber might have left their DNA: their hair, skin cells, saliva, etc. in the house somewhere. DNA has lots of use at a day like this. It can also see if any student touched their teacher's desk so stay away from their stuff when you are suppose to because the teacher can do a DNA testing on her table when she wants to...! Scary, isn't it? DNA helped solve lots of crimes in these modern day; it also helps some other stuff like helping children finding their parents or seeing if that is their biological parent. Therefore, it can also help people see if a person's blood type matches with someone elses to save their life. DNA saves lives, maybe even me someday!!! DNA testing cannot be 100% true, but it can be 99.9% true.

The two main tests of DNA are PCR and RFLP. PCR stands for polymerase whereas RFLP stands for restriction fragment length polymorphism. PCR is a naturally occuring enzyme, a biological macromolecule that catalyzes the formation and repair of DNA. This PCR, differs in reliability and effectiveness and this DNA testing allows you to make multiple copies of a DNA sequence in a short period of time. It's what used for electrophoresis for finger printing and etc. RFLP is another main DNA testing, it provides important information such as screening human DNA for the presence of potentially deleterious genes or providing proof to show the innocenece of one person's crime.