Tuesday, January 24, 2012

DNA

DNA stands for deoxyribo nucleic acid. DNA is essential to all living species, its what makes us unique and alive. DNA is what informs cells how to function, without DNA  there would be no cell division therefore no growth. Nucleotide is made of an organic molecule that is found in DNA. A codon is a sequence of three nucleotides which together form a unit of genetic code in a DNA.



Thursday, January 12, 2012

Cancer and Mitosis

Cancer and mitosis:

Mitosis is a controlled cell when it gets out of control it reproduces. Uncontrolled reproduction causes tumors.

Tuesday, January 10, 2012

The importance of mitosis

Telaphase is the last phase of mitosis. Chromosomes are broken down and become unduplicated and begin to separte and stretch out.

The importance of mitosis

Anaphase is a duplicated chromosome that separates and becomes unduplicated chromosomes in their own right.

The importance of mitosis

chromosomes are lined up at the center.

The importance of mitosis

Prophase is the first phase in mitosis it becomes visible, and chromosomes duplicate.