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Khan Academy explains the molecular mechanism of DNA replication in detail.
One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template.
DNA structure and function. Nucleic acids. DNA. Molecular structure of DNA. Antiparallel structure of DNA strands. Leading and lagging strands in DNA replication. Speed and precision of DNA replication. Levels of DNA organization. Telomeres and single copy DNA vs repetitive DNA. DNA repair 1. DNA repair 2. Semi-conservative replication. Test prep >
Telomeres protect chromosome ends from degradation, and telomerase maintains their length during DNA replication.
Review the structure and replication of DNA, including key concepts and mechanisms.
Learn about the structure and function of DNA, including its role in inheritance and genetic information storage.
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DNA sequencing involves three main steps: 1) using PCR to amplify DNA fragments, 2) introducing dideoxynucleotides that halt DNA strand elongation, and 3) employing a computer to analyze the fluorescent labels on the DNA fragments to determine the sequence.
DNA serves as the genetic material for all living organisms. Learn more about the structure and synthesis of this remarkable molecule, and how genes in your DNA provide instructions for building proteins.
A DNA double helix has three primary features that are important for its function: antiparallel strands, hydrogen bonds between strands, and complementary base pairing.