DNA Replication Made Easy
DNA Replication Made Easy
Watch part 2 here : https://youtu.be/Dc21ml8-_PI
DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. This process occurs in all living organisms and is the basis for biological inheritance. The cell possesses the distinctive property of division, which makes replication of DNA essential.
DNA is made up of a double helix of two complementary strands. During replication, these strands are separated. Each strand of the original DNA molecule then serves as a template for the production of its counterpart, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.
In a cell, DNA replication begins at specific locations, or origins of replication, in the genome.[3] Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bi-directionally from the origin. A number of proteins are associated with the replication fork to help in the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new strands by adding nucleotides that complement each (template) strand. DNA replication occurs during the S-stage of interphase.
DNA replication, like all biological polymerization processes, proceeds in three enzymatically catalyzed and coordinated steps: initiation, elongation and termination.
Replication fork
Many enzymes are involved in the DNA replication fork.
The replication fork is a structure that forms within the nucleus during DNA replication. It is created by helicases, which break the hydrogen bonds holding the two DNA strands together. The resulting structure has two branching "prongs", each one made up of a single strand of DNA. These two strands serve as the template for the leading and lagging strands, which will be created as DNA polymerase matches complementary nucleotides to the templates; the templates may be properly referred to as the leading strand template and the lagging strand template.
Watch Again : https://youtu.be/ePZc-71PT_4
Видео DNA Replication Made Easy канала MEDSimplified
Watch part 2 here : https://youtu.be/Dc21ml8-_PI
DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. This process occurs in all living organisms and is the basis for biological inheritance. The cell possesses the distinctive property of division, which makes replication of DNA essential.
DNA is made up of a double helix of two complementary strands. During replication, these strands are separated. Each strand of the original DNA molecule then serves as a template for the production of its counterpart, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.
In a cell, DNA replication begins at specific locations, or origins of replication, in the genome.[3] Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bi-directionally from the origin. A number of proteins are associated with the replication fork to help in the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new strands by adding nucleotides that complement each (template) strand. DNA replication occurs during the S-stage of interphase.
DNA replication, like all biological polymerization processes, proceeds in three enzymatically catalyzed and coordinated steps: initiation, elongation and termination.
Replication fork
Many enzymes are involved in the DNA replication fork.
The replication fork is a structure that forms within the nucleus during DNA replication. It is created by helicases, which break the hydrogen bonds holding the two DNA strands together. The resulting structure has two branching "prongs", each one made up of a single strand of DNA. These two strands serve as the template for the leading and lagging strands, which will be created as DNA polymerase matches complementary nucleotides to the templates; the templates may be properly referred to as the leading strand template and the lagging strand template.
Watch Again : https://youtu.be/ePZc-71PT_4
Видео DNA Replication Made Easy канала MEDSimplified
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Dna Replication Part 2Nucleic acids - DNA and RNA structureDNA Transcription Made EASY | Part 1: Initiation 🐣DNA- Structure and function of Deoxyribonucleic Acid (DNA)STD 12 (Biology) - Protein synthesis (Translation)Genetics - Replication Methods and Central Dogma - Lesson 16 | Don't MemoriseTranscription Made Easy- From DNA to RNA (2019)6 Steps of DNA ReplicationDNA Replication | MIT 7.01SC Fundamentals of BiologyDNA replication - 3DDNA Replication in Prokaryotes | InitiationBiology: Cell Structure I Nucleus Medical MediaMechanisms of DNA Damage and RepairPCR - Polymerase Chain Reaction SimplifiedThe Structure of DNADNA Replication: Copying the Molecule of LifeLife Science - Protein synthesis (Translation)Nucleic Acids - RNA and DNA Structure - BiochemistryDNA Replication (Updated)From DNA to protein - 3D