Powered By Blogger

Thursday, January 27, 2011

genetics

            We all have many different genes in us These genes determine what our outer appearance will look like. For instants like out skin color, hair color, eye color,even some diseases we can inherit. People are carriers of some restive disease, but they do not have to have this disease but they will carry it the next generation. Genes have to deal with molecular structure. We inherit our genes from our parents and other blood lines. Our genes are living organisms, even plants and bacteria carrie genes. Our genes have DNA inside the cell, DNA is a molecule with four types of nucleotides. DNA creates other copies of itself, thats how we get more genes that we inherited. 
  • Aneesha and I created a fake baby that we would have with each other. We couldn't predict what sex of the baby we will have, Because its an 50- 50 chance its a boy or a girl. Even with the physical appearance. We both thought it was pretty interesting and entertaining  at the same time. The baby turned out to be a good looking kid. :) lol

23 pairs of chromosomes 





http://learn.genetics.utah.edu/content/begin/tour/

Monday, January 10, 2011

cell cycle


Cell Cycle
I realized that I didn't know too much about the cell cycle. So here's the basics of how it works.

  • It starts off at with G1- this is when the cell grows, controls mechanism ensures its ready for DNA synthesis
  • S phase-the cell makes DNA to make other cells
  • G2 phase-cell grows more and makes more cell molecules  Gap between DNA and mitosis, makes sure everything is ready to go into mitosis stage
  • Mitosis- cell separates the chromosome in the nucleus into identical sets.

Interphase: End of the Cell Cycle, cell becomes two different cells. cell growth stops at this stage it focuses on the division into two daughters cells.
Metaphase- The chromatids are lined up between.
Anaphase: The chromotids begin to separate and become chromosomes. then moves towards the ends of the poles.  
Metaphase-stage of meiosis, comes before anaphase, chromosome become aligned before getting separated. 
Prophases-nuclear disappears and centrioles divides and migrate to opposite ends of the cells
Telophase-The chromosomes arrive at the poles, and starts to grow a nuclear membranes.
Cytokinesis- A furrow is created in the parent cell and the two new cells grow apart.