The Central Dogma of Molecular Biology explains how genetic information is stored in DNA, transcribed into RNA, and translated into proteins. Explore DNA replication, transcription, RNA processing, translation, gene regulation, genetic mutations, and modern extensions of the Central Dogma.
Helicases are ATP-dependent molecular machines that unwind and remodel DNA and RNA. Explore their functions in DNA replication, repair, recombination, transcription, RNA metabolism, genetics, disease, and biotechnology.
Mutations are changes in DNA sequence that can influence genes, genetic variation, disease, and evolution. Learn about substitutions, insertions, deletions, frameshift mutations, somatic and germline mutations, DNA repair, cancer mutations, and genome stability.
ATR is a key protein kinase that protects cells from replication stress and DNA damage. Explore how ATR detects single-stranded DNA, stabilizes replication forks, activates CHK1, and maintains genome stability.
Replication stress occurs when DNA replication forks stall or collapse, generating genomic instability and driving tumour evolution. Through ATR–CHK1 signalling, fork protection and homologous recombination repair, cells stabilise damaged forks and prevent catastrophic chromosomal breakage.
The S phase is the period of the cell cycle in which DNA is replicated, producing identical copies of the genome for distribution to daughter cells. It is tightly regulated to maintain accuracy and prevent genomic instability.
Nucleic acids, primarily DNA and RNA, are fundamental biological molecules that store, transmit, and regulate genetic information. Explore their structure, functions, replication, gene expression, mutations, genomics, and importance in life science.
DNA replication is the process cells use to accurately copy their genomes before division. Learn about replication origins, helicase, primase, DNA polymerase, leading and lagging strands, Okazaki fragments, proofreading, telomeres, and replication repair.
The Central Dogma of Molecular Biology explains how genetic information is stored in DNA, transcribed into RNA, and translated into proteins. Explore DNA replication, transcription, RNA processing, translation, gene regulation, genetic mutations, and modern extensions of the Central Dogma.
Helicases are ATP-dependent molecular machines that unwind and remodel DNA and RNA. Explore their functions in DNA replication, repair, recombination, transcription, RNA metabolism, genetics, disease, and biotechnology.
Mutations are changes in DNA sequence that can influence genes, genetic variation, disease, and evolution. Learn about substitutions, insertions, deletions, frameshift mutations, somatic and germline mutations, DNA repair, cancer mutations, and genome stability.
ATR is a key protein kinase that protects cells from replication stress and DNA damage. Explore how ATR detects single-stranded DNA, stabilizes replication forks, activates CHK1, and maintains genome stability.
Replication stress occurs when DNA replication forks stall or collapse, generating genomic instability and driving tumour evolution. Through ATR–CHK1 signalling, fork protection and homologous recombination repair, cells stabilise damaged forks and prevent catastrophic chromosomal breakage.
The S phase is the period of the cell cycle in which DNA is replicated, producing identical copies of the genome for distribution to daughter cells. It is tightly regulated to maintain accuracy and prevent genomic instability.
Nucleic acids, primarily DNA and RNA, are fundamental biological molecules that store, transmit, and regulate genetic information. Explore their structure, functions, replication, gene expression, mutations, genomics, and importance in life science.
DNA replication is the process cells use to accurately copy their genomes before division. Learn about replication origins, helicase, primase, DNA polymerase, leading and lagging strands, Okazaki fragments, proofreading, telomeres, and replication repair.
