The enzyme that separates the two strands of nucleotides in DNA is helicase. Enzymes are protein molecules that speed up chemical reactions.Know More
When DNA replicates, helicase binds to a specific site called the origin of replication. Once the strands separate, another enzyme called DNA polymerase controls the replication process. As replication progresses, helicase continues to separate the strands of DNA.
The helicase needs energy to break the hydrogen bonds between the strands, so it uses the stored energy in adenosine triphosphate, more commonly known as ATP. After the strands have been separated, a protein is used to stabilize each single strand.Learn more about Biology
DNA, or deoxyribonucleic acid, is used in the human body in order for an organism to reproduce, develop and survive as well as in science for genetic engineering, forensics, bioinformatics, evolutionary history and information storage. A human's DNA code contains about 3 billion bases and 20,000 genes in 23 pairs of chromosomes.Full Answer >
DNA isolation is the process by which scientists are able to separate the DNA that is located within the cell from the proteins and other substances that are in the cell. DNA isolation allows scientists to look at the DNA that is contained within the cell in an environment that is not obstructed by the other structures of the cell.Full Answer >
DNA transcription takes place in the nucleus of a cell, which is where DNA is located. The process begins when the enzyme RNA polymerase hooks itself to a specific sequence found on the DNA at a place called the promoter region.Full Answer >
The two purines in DNA are adenine and guanine. Within the structure of DNA, purines are paired with complementary pyrimidine bases, forming base pairs that are bonded by hydrogen bonds. These two purines are also found in RNA.Full Answer >