Tuesday, April 12, 2011

Eugenics!

Lets just say.. Eugenics are basically men terms breeding of humans.  The social origins behind it were that to many immigrants were coming into the country.  When they would reproduce, some of their children would have mutations. So.. the people in "upper' class didn't want FREAKS in America, so scientist came up with the idea of Eugenics! The children that were born would be sterilized so that they couldn't have mutated kids. This is the social origin of Eugenics.

A little bit of History:
For some that don't know (like me).... The very first scientific for Eugenics was if you masturbated, you were considered a degenerated and would be sterilized.  This was known as the "Sterilization Law of 1907."  In the mid 19th century, scientist started to believe that only certain environments cause a such thing as degenerated heredity.  They said: "that a good environment would change bad heredity into good withing three generations."  Two men know as Anton Ochsner and Harry Sharp were convinced that social failure was just a medical problem.  This meant that if you did not have a job, or any education back from your day it was considered a medical problem.  It came up to believe that degeneracy was caused by a germ plasma.

This whole Eugenics research started with Mendel's law of Inheritance of Human Traits.  Eugenics researchers had attempted to trace genetics by a family tree or pedigree. And while they recorded, they had started to make mistakes.  With these little mistakes, it could do simple things such as: face shape but complex things such as musical talent or becoming very intelligent were barely possible.  There were surveys called ERO's while had recorded the family traits and where it went wrong, people were surveying instead of looking at their traits in person. 

So however, Eugenics did come in handy in America and are still used today! It was one of the first and major one of making us get a better education.  Eugenics did the job, and tried to make America a pure race.
I hope you learned just as much as I did while writing about it!

DNA Lab!

This lab was soo cool!! For some that don't know... DNA is a polmer.  In DNA, there are units that are called nucleotides.  The polymer is called polynucleotide.  For each nucleotide, it consists of a 5-carbon sugar, a nitrogen containging a base that is attached to the sugar, and a phosphate group.  However, there are 4 different types of nucleotides that are found in DNA. Down below will show you what each letter means:

A- Adenine
     Def: purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
G- Guanine
     Def: a purine base found in DNA and RNA; pairs with cytosine
C- Cytosine
     Def: a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
T- Thymine
     Def: a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
(In purine bases which are adenine and guanine there are 9 atoms that make up the fused rings, and all of the rings atoms lie in the same plane.)   


So.... in Bio. the class did this lab "DNA Extraction from Wheat Germ. To start off with, the color of the wheat germ soup was a runny brown color.  Then the color had changed while adding detergent and soap turning it lime-green with brown specks.  Adding this to the wheat, is the step of processing it to create DNA.  After, the appearance of the mixture after alcohol was added, there was a five different layer and now it has created more DNA.  At this step, DNA has been created because of the formation it has went through.  Finishing up the lab, the DNA looked like white Clump, kind of like sperm type.....< gross right?! Soooo.... in other words, by doing this lab, I learned about the formation of DNA and how it works!