There are 2 strands of nucleotides in a double-helix - they are anti-parallel, meaning they go in opposite directions. Double stranded DNA is located in the chromosome. DNA and proteins together make up chromatin which is foiled and coiled.

DNA makes an exact copy of itself just before cell division begins. This process of DNA duplication is known as replication. The hydrogen bond between the base pairs of the 2 nucleotide strands weaken, and the 2 strands break ap

art. Each strand acts as a template forming a new nucleotide. This is accomplished by the acting of 2 sets of enzymes - DNA helicase enzymes and DNA polymerase enzymes. The DNA helicase enzymes separate the 2 nucleotide strands. The site where the helicase is working and where replication is taking place is known as the DNA fork. The polymerase enzyme helps the nitrogenous base in a given nucleotide to pick up and attach to a complementary base at the 3' end of the DNA template. The 5'-3' strand of template is duplicated in short segments called Okazaki fragments. Ligase is the enzyme that joins the fragments together. The end product of this is an exact copy of the original DNA.

2.Cliff's AP Biology preparation guide

In conclusion, DNA - God's secret recipe for making you, has the ability to copy itself, is stable, yet able to be changed, and is also complex enough to determine a per

Some common words found in the essay are:
, DNA DNA, DNA God's, Hershey Chase, base pairs, enzymes dna, stable able changed, dna responsible transmission, dna helicase enzymes, 2 nucleotide strands, Edition Biology, radioactive isotope, dna responsible, exact copy, process dna, 2 strands, ability copy, nucleotide strands, responsible transmission, enzymes dna helicase,
Approximate Word count = 602
Approximate Pages = 2 (250 words per page double spaced)