Genetic Code

brought to you by: Del-Rico L. and Charvon M.


What is it?

Genetic Codes are the ordering of nucleotides in DNA molecules that carries the genetic information in living cells. It's a set of rules that maps DNA sequences to proteins in a living cell, and is employed in the proccess of protein synthesis. Most living things use the same genetic code which is the standard genetic code, however a few organisms use variations of the standard code. Genetic codes makes up our entire body. Genetic codes are located in the two stranded DNA molecule.

How does it work?

Genetic code is made up of four nitrogen bases. The bases are Thymine,guamine,adenine,cytocine. The order of these bases determines the persons DNA. The gene sequence described in DNA and RNA is composed of trinucleotide units, each used for building a amino acid. Each nucleotide subunit consist of a phosphate deoxyribose sugar and one of the four nucleotide bases grouped into two catergories purine and pyrimidiene.

What does it do?

Genetic code makes up all living things. It Determines our characteristics such as height, hair color, and eye color. It tells you how to act in certain situations. Overall it makes up all that you are.


The Genetic Code

By: Russell S. and Nick R.


What is it?

The Genetic Code is the make up of our bodies. It determines our make up and our characteristics, which tells how we act and react to many different things. I think people should not criticize the fact that a person has crooked teeth, hair, eyes, face, weight, attitudes, the way people think, and live because it is not their fault that they got the genes from their parents and can not help the fact that they look or act that way. Another reason I think that people should not do this is because the genes can change the way that you look in the future like on them Jenny Jones show. Also you could turn out looking like that and smelling that way.

How does it work?

The genetic code is made up of four nitrogen bases, adenine, thymine, cytosine, and guanine. The order of these four bases makes up the code. Adenine only pairs with thymine and cytosine only pairs with guanine. This is called DNA. DNA is loosely attached to double strands of chromosomes. This is called the Double Helix. Every cell has DNA. DNA sends messages that tell you what to look like how to act, how fast to grow, etc. DNA sends these messages through a messenger called RNA. RNA stands for Ribo Nucleic Acid. The chromosomes on the Double Helix are made of a sugar, deoxyribose, where the nitrogen bases or DNA connects, and an acid, phosphate. The two nitrogen bases that together make a strand of DNA, are held together in the center by a hydrogen bond.

What does it do?

The genetic code is essentially makes up all forms of life. It determines how we act, our size, our hair color, eye color, even the placement of each and every strand of hair on our body. The genetic code determines who we are and everything we are. It is even responsible for passing life from parent to offspring.


By: Diana, Brandon, and Ben

What it is

The genetic code is located in the two- stranded DNA molecule. Each strand is a polynucleotide composed Adenosine, Thymidine, Cytosine and Guanine. Adenosine form of two hydrogen-bonds with Thymidine; Cytosine forms three hydrogen-bonds with Guanine. In most cases the two-stranded, anti-parallel complementary DNA molecule folds to form a helical structure, which looks like a staircase, which it's known as the double helix.

What it does

Two strands make up the double helix DNA. One strand of DNA strand contains information that codes for various genes, it's known as the template strand containing anti-codons. The other, complementary strand is called the loading strand. Since mRNA is made from the template strand, it contains the same information.

An example of two complementary strands of DNA would be;

AATTGGAATTCTCGTC (coding strand)

TTAACCTTAAGAGCAG (Template strand)

AUGGAAUUCUCGCUC (mRNA made form template strand)

How it works

The Genetic Code in the table above has also been called "the universal genetic code' It is known as "universal". Because it is used by all known organisms as a code for DNA, mRNA, and tRNA. The universality of the genetic code encompassed animals (including humans), plants, fungi, archaea, bacteria, and viruses. However, all rules have their exceptions, and such is the case with the Genetic Code; small variations in the code exist in mitochondria and certain microbes. Nonetheless, it should be emphasized that these variances represent only a small fraction of known cases, and that the Genetic Code applies quite broadly, certainly to all known nuclear genes.


Links

http://psyche.uthct.edu/shaun/SBlack/geneticd.html/

http://www.amsci.org/amsci/issues/Comsci98/compsci9801.html

 

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