Call Dr. Donald Michael Stout on phone number (202) 798-0100 for more information and advice or to book an appointment. 1101 15th St Nw Washington, DC 20005-5002 (202) 798-0100
DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication.Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.NA usually exists as a double-stranded structure, with both strands coiled together to form the characteristic double-helix. Each single strand of DNA is a chain of four types of nucleotides. Nucleotides in DNA contain a deoxyribose sugar, a phosphate, and a nucleobase.
DNA replication is the process by which DNA makes a copy of itself during cell division. 1  The first step in DNA replication is to âunzipâ the double helix structure of the DNA molecule. The new strand is proofread to make sure there are no mistakes in the new DNA sequence. 2  Finally, an enzyme called DNA ligase seals up the sequence of DNA into two continuous double strands. 3  The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides.