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Learning the fundamentals of gene editing starts with understanding DNA, genes, and how the central dogma of molecular biology turns genetic information into proteins. This educational hub provides structured learning paths from absolute beginner through advanced topics, interactive visual explainers showing how CRISPR, base editing, and gene therapy work step by step, and a comprehensive glossary of every term you will encounter. Whether you are a student, a curious reader, or a professional transitioning into genomics, these resources will build your knowledge systematically.

75 articles24 glossary terms

Key Subtopics

DNA & Genetics Basics

Foundational concepts in molecular biology and genetics

Learning Paths

Structured multi-article courses with quizzes and progress tracking

Visual Explainers

Interactive animated diagrams showing how gene editing tools work

Glossary

Definitions of key terms across gene editing, therapy, and biotech

Beginner Guides

Accessible introductions to complex topics for newcomers

Deep Dives

In-depth analysis and expert-level coverage

Gene Therapy Costs in 2026: From $2.2 Million Treatments to the Access Crisis
Gene Therapy
Deep Dive

Gene Therapy Costs in 2026: From $2.2 Million Treatments to the Access Crisis

Approved gene therapies now cost between $2.1 million and $4.25 million per patient. This guide breaks down the real prices, why they are so high, how insurance and payment models are evolving, and why the global access crisis remains the field's most urgent unsolved problem.

May 14, 202625 min read
BPC-157: The Body Protection Compound — Science, Legality, and What We Actually Know (2026)
Peptide Therapeutics
Deep Dive

BPC-157: The Body Protection Compound — Science, Legality, and What We Actually Know (2026)

A comprehensive, scientifically honest guide to BPC-157 — what the animal data actually shows, why zero human clinical trials have been completed, the legal gray zone in 2026, and what anyone considering this peptide needs to know.

May 2, 202621 min read
GLP-1 Drugs Beyond Weight Loss: Heart Disease, Addiction, Alzheimer's, and More
Peptide Therapeutics
Deep Dive

GLP-1 Drugs Beyond Weight Loss: Heart Disease, Addiction, Alzheimer's, and More

Semaglutide and other GLP-1 receptor agonists are proving to be far more than weight-loss drugs. From cardiovascular protection and kidney disease to addiction, Alzheimer's, and sleep apnea, the expanding therapeutic reach of this peptide class is reshaping medicine.

Apr 26, 202631 min read
Alpha-Ketoglutarate and Aging: The Rejuvant Evidence
Longevity Science
Deep Dive

Alpha-Ketoglutarate and Aging: The Rejuvant Evidence

A rigorous look at alpha-ketoglutarate (AKG) and Rejuvant — the mouse lifespan data, the 8-year biological age claim, and what's actually proven.

Apr 8, 20268 min read
Intercellular Communication Aging: The Peptide-Signaling Hallmark
Longevity Science
Deep Dive

Intercellular Communication Aging: The Peptide-Signaling Hallmark

Intercellular communication aging explained: how hormonal, neural, and exosomal signaling break down with age — and why this hallmark is the most directly relevant to peptide therapy.

Apr 8, 20268 min read
Anti-CRISPR Proteins (Acrs): The Natural Off-Switch for Gene Editing
Gene Editing
Deep Dive

Anti-CRISPR Proteins (Acrs): The Natural Off-Switch for Gene Editing

Anti-CRISPR proteins (Acrs) are bacteriophage-encoded off-switches for CRISPR. Discover how Acrs work and why they are becoming essential safety tools.

Apr 8, 20267 min read
Autophagy: The Cellular Recycling Pathway at the Heart of Longevity
Longevity Science
Deep Dive

Autophagy: The Cellular Recycling Pathway at the Heart of Longevity

Autophagy longevity science explained: how the cell's recycling system declines with age and why it is a central target for healthspan interventions.

Apr 8, 20269 min read
Bimagrumab + GLP-1: Muscle Preservation for Obesity Drugs
Peptide Therapeutics
Deep Dive

Bimagrumab + GLP-1: Muscle Preservation for Obesity Drugs

Bimagrumab plus GLP-1 is the leading strategy to preserve muscle during obesity drug treatment. Inside Lilly's $1.9B Versanis acquisition.

Apr 8, 20269 min read
Blue Zones: What the Science Actually Supports (and What It Doesn't)
Longevity Science
Deep Dive

Blue Zones: What the Science Actually Supports (and What It Doesn't)

Blue zones longevity research is part genuine science, part storytelling. Here's what holds up under scrutiny — and what doesn't.

Apr 8, 20268 min read
Bridge RNAs: The 2024 Gene Editing Breakthrough Beyond CRISPR
Gene Editing
Deep Dive

Bridge RNAs: The 2024 Gene Editing Breakthrough Beyond CRISPR

Bridge RNAs are the June 2024 gene editing breakthrough beyond CRISPR — a single enzyme that can insert, delete, or invert DNA precisely. A complete guide.

Apr 8, 20268 min read
Caloric Restriction and Intermittent Fasting: Evidence for Longevity
Longevity Science
Deep Dive

Caloric Restriction and Intermittent Fasting: Evidence for Longevity

Caloric restriction longevity evidence reviewed: nearly a century of rodent, monkey, and human trials — and an honest assessment of what really works.

Apr 8, 20269 min read
Cas12 and Cas12a (Cpf1): The Smaller, Sharper CRISPR Editors
Gene Editing
Deep Dive

Cas12 and Cas12a (Cpf1): The Smaller, Sharper CRISPR Editors

Cas12a (Cpf1) is the smaller, sharper alternative to Cas9 — single-RNA, sticky-end cuts, AT-rich PAM. Learn how Cas12 enzymes power both editing and diagnostics.

Apr 8, 20267 min read
Cas13: The RNA-Targeting CRISPR for Editing and Diagnostics
Gene Editing
Deep Dive

Cas13: The RNA-Targeting CRISPR for Editing and Diagnostics

Cas13 RNA editing targets RNA instead of DNA — enabling reversible knockdown, programmable RNA edits, and the SHERLOCK diagnostics platform. A complete guide.

Apr 8, 20267 min read
Inflammaging: The Chronic Inflammation Hallmark of Aging
Longevity Science
Deep Dive

Inflammaging: The Chronic Inflammation Hallmark of Aging

Inflammaging explained: how chronic low-grade inflammation drives aging, the role of NLRP3, SASP, IL-6, and the senolytic and anti-inflammatory drugs targeting it.

Apr 8, 20268 min read
Compact CRISPR Editors: CasX, CasMINI, and the Quest for Tiny Editors
Gene Editing
Deep Dive

Compact CRISPR Editors: CasX, CasMINI, and the Quest for Tiny Editors

Compact CRISPR editors like CasX, CasMINI, CasΦ, and Cas-CLOVER solve the AAV packaging limit and unlock new in vivo therapies.

Apr 8, 20269 min read
CRISPRa (CRISPR Activation): Turning Genes On With Guide RNAs
Gene Editing
Deep Dive

CRISPRa (CRISPR Activation): Turning Genes On With Guide RNAs

CRISPR activation (CRISPRa) turns endogenous genes on without inserting transgenes. Learn how dCas9-VP64, SAM, SunTag, and VPR work — and where CRISPRa is heading clinically.

Apr 8, 20267 min read
CRISPRi (CRISPR Interference): How Gene Silencing Works
Gene Editing
Deep Dive

CRISPRi (CRISPR Interference): How Gene Silencing Works

CRISPR interference (CRISPRi) silences genes without cutting DNA. Learn how dCas9-KRAB works, its key papers, and why it is reshaping therapeutics.

Apr 8, 20268 min read
Danuglipron: The Story of Pfizer's Discontinued Oral GLP-1
Peptide Therapeutics
Deep Dive

Danuglipron: The Story of Pfizer's Discontinued Oral GLP-1

Danuglipron was Pfizer's flagship oral GLP-1 bet for obesity. A look at what it was, why it failed, and what the discontinuation means.

Apr 8, 20269 min read
Nutrient Sensing Aging: The 4 Pathways That Control Longevity
Longevity Science
Deep Dive

Nutrient Sensing Aging: The 4 Pathways That Control Longevity

Nutrient sensing aging explained: how insulin/IGF-1, mTOR, AMPK, and sirtuins drive longevity, and the rapamycin, metformin, and NAD+ evidence behind each pathway.

Apr 8, 20268 min read
Epigenetic Clocks in 2026: Horvath, GrimAge, DunedinPACE Compared
Longevity Science
Deep Dive

Epigenetic Clocks in 2026: Horvath, GrimAge, DunedinPACE Compared

The 2026 state of epigenetic clocks — Horvath, Hannum, PhenoAge, GrimAge, DunedinPACE — how they're used in longevity trials and their real limits.

Apr 8, 20269 min read
Exercise and Longevity: Why VO2 Max Is the #1 Mortality Predictor
Longevity Science
Deep Dive

Exercise and Longevity: Why VO2 Max Is the #1 Mortality Predictor

VO2 max longevity evidence is overwhelming. A rigorous look at the data: Cleveland Clinic, Kodama meta-analysis, zone 2, strength training, and dose.

Apr 8, 202610 min read
FGF21: The Metabolic Longevity Hormone That Mimics Caloric Restriction
Longevity Science
Deep Dive

FGF21: The Metabolic Longevity Hormone That Mimics Caloric Restriction

FGF21 aging research shows a liver hormone that mimics fasting and extends mouse lifespan 40%. Here's the science, the trials, and the paradox.

Apr 8, 20268 min read
Fisetin Senolytic: 2026 Clinical Trial Update
Longevity Science
Deep Dive

Fisetin Senolytic: 2026 Clinical Trial Update

Fisetin senolytic trial results reviewed: Mayo Clinic AFFIRM data, Kirkland's senolytic screen findings, and what 2026 human evidence actually supports so far.

Apr 8, 20268 min read
GDF11: The Parabiosis Factor and the 'Young Blood' Controversy
Longevity Science
Deep Dive

GDF11: The Parabiosis Factor and the 'Young Blood' Controversy

GDF11 aging research sparked hope that a single blood factor could reverse aging — then collapsed into controversy. Here's what's real and what's not.

Apr 8, 20269 min read
Genomic Instability Aging: DNA Damage as the First Hallmark
Longevity Science
Deep Dive

Genomic Instability Aging: DNA Damage as the First Hallmark

Genomic instability aging explained: DNA damage accumulation, progeroid syndromes, the ICE mouse, and the CRISPR base editors targeting progerin in clinical trials.

Apr 8, 20269 min read
GlyNAC (Glycine + NAC): The Glutathione Restoration Study
Longevity Science
Deep Dive

GlyNAC (Glycine + NAC): The Glutathione Restoration Study

GlyNAC — glycine plus N-acetylcysteine — aims to restore glutathione in older adults. A rigorous look at the Baylor trials and what they actually show.

Apr 8, 20268 min read
Irisin: The Exercise-Induced Peptide Driving Longevity Benefits
Longevity Science
Deep Dive

Irisin: The Exercise-Induced Peptide Driving Longevity Benefits

Irisin exercise research reveals how a muscle-released peptide drives brown fat activation, bone health, and even cognitive protection. The full story.

Apr 8, 20268 min read
Klotho: The Anti-Aging Hormone Linked to Brain Health
Longevity Science
Deep Dive

Klotho: The Anti-Aging Hormone Linked to Brain Health

Klotho longevity science: Kuro-o's 1997 discovery, Dena Dubal's cognition work, kidney and brain roles, KL-VS variant, and the therapeutic pipeline in 2026.

Apr 8, 20268 min read
Metformin for Anti-Aging: The Complete 2026 Evidence Review
Longevity Science
Deep Dive

Metformin for Anti-Aging: The Complete 2026 Evidence Review

An honest 2026 review of metformin anti-aging evidence — mechanism, UKPDS, TAME trial, exercise blunting, and who actually benefits.

Apr 8, 20268 min read
Mitochondrial Dysfunction Aging: The Hallmark Powering Decline
Longevity Science
Deep Dive

Mitochondrial Dysfunction Aging: The Hallmark Powering Decline

Mitochondrial dysfunction aging explained: mtDNA mutations, ATP decline, MOTS-c, urolithin A, and the new CRISPR base editors that finally reach mitochondrial DNA.

Apr 8, 20268 min read
NMN, NR, and NAD Precursors: Evidence Review (2026)
Longevity Science
Deep Dive

NMN, NR, and NAD Precursors: Evidence Review (2026)

Honest 2026 evidence review of NMN NAD precursors — do they raise NAD+, do they work, and what do the human trials actually show?

Apr 8, 20267 min read
Parabiosis and Plasma Dilution: The Young Blood Longevity Frontier
Longevity Science
Deep Dive

Parabiosis and Plasma Dilution: The Young Blood Longevity Frontier

Parabiosis plasma dilution research reshaped longevity science. From young blood to saline swaps — the honest story of two decades of work.

Apr 8, 20269 min read
Pemvidutide (ALT-801): Altimmune's GLP-1/Glucagon Peptide for MASH
Peptide Therapeutics
Deep Dive

Pemvidutide (ALT-801): Altimmune's GLP-1/Glucagon Peptide for MASH

Pemvidutide is Altimmune's balanced GLP-1/glucagon dual agonist peptide, posting 59% MASH resolution and 15.6% weight loss in Phase 2.

Apr 8, 20268 min read
Proteostasis Aging: Why Protein Quality Control Fails Over Time
Longevity Science
Deep Dive

Proteostasis Aging: Why Protein Quality Control Fails Over Time

Proteostasis aging explained: how the heat shock response, ubiquitin-proteasome system, and autophagy fail with age — and which interventions actually restore protein quality control.

Apr 8, 20268 min read
Rapamycin for Longevity: What the Evidence Actually Shows (2026)
Longevity Science
Deep Dive

Rapamycin for Longevity: What the Evidence Actually Shows (2026)

The honest 2026 evidence review for rapamycin longevity — mouse lifespan data, human trials (PEARL, TRIAD, dog trial), dosing, risks.

Apr 8, 20269 min read
Retrons: The Bacterial Reverse Transcriptase Revolutionizing Editing
Gene Editing
Deep Dive

Retrons: The Bacterial Reverse Transcriptase Revolutionizing Editing

Retron gene editing uses bacterial reverse transcriptases to generate single-stranded DNA inside cells — a clever solution to prime editing's template delivery problem.

Apr 8, 20267 min read
Senolytics Clinical Trials Results 2026: What Data Shows
Longevity Science
Deep Dive

Senolytics Clinical Trials Results 2026: What Data Shows

Updated senolytics clinical trials results for 2026: D+Q, fisetin, and UBX-1325 data analyzed. See which trials succeeded, which failed, and what comes next.

Apr 8, 20268 min read
Spermidine: The Autophagy-Inducing Molecule for Longevity
Longevity Science
Deep Dive

Spermidine: The Autophagy-Inducing Molecule for Longevity

Spermidine longevity evidence review: polyamine biology, Madeo lab findings, mouse cardioprotection, human epidemiology, and what supplementation can actually do.

Apr 8, 20268 min read
Stem Cell Exhaustion Aging: Why Tissue Renewal Slows Down
Longevity Science
Deep Dive

Stem Cell Exhaustion Aging: Why Tissue Renewal Slows Down

Stem cell exhaustion aging explained: how HSCs, satellite cells, and neural stem cells decline with age, and what parabiosis, Yamanaka reprogramming, and gene therapy can restore.

Apr 8, 20267 min read
Taurine and Longevity: The 2023 Science Study Explained
Longevity Science
Deep Dive

Taurine and Longevity: The 2023 Science Study Explained

Taurine longevity explained — the Singh/Yadav 2023 Science paper, cross-species lifespan data, human correlations, and why one huge study is not replication.

Apr 8, 20268 min read
Twin Prime Editing and PASTE: CRISPR for Large DNA Insertions
Gene Editing
Deep Dive

Twin Prime Editing and PASTE: CRISPR for Large DNA Insertions

Twin prime editing and PASTE extend prime editing to kilobase-scale insertions — using paired pegRNAs and serine integrases for full gene replacement.

Apr 8, 20268 min read
Urolithin A and Mitophagy: The Mitochondrial Cleanup Peptide
Longevity Science
Deep Dive

Urolithin A and Mitophagy: The Mitochondrial Cleanup Peptide

Urolithin A mitophagy explained — how pomegranate metabolites and Mitopure target mitochondrial cleanup, the Andreux and Singh trials, and the 40% problem.

Apr 8, 20267 min read
How Do You Get CRISPR Into Cells? Gene Editing Delivery Systems Explained
Gene Editing
Deep Dive

How Do You Get CRISPR Into Cells? Gene Editing Delivery Systems Explained

An in-depth look at how CRISPR components are delivered into cells, from viral vectors and lipid nanoparticles to electroporation and next-generation virus-like particles.

Mar 20, 20267 min read
The Ethics of Gene Editing: Where Should We Draw the Line?
Learn
Deep Dive

The Ethics of Gene Editing: Where Should We Draw the Line?

A deep dive into the ethical landscape of gene editing -- from the clear benefits of somatic therapy to the fraught territory of germline modification, designer babies, and the global governance gap.

Mar 4, 20268 min read

Beginner Guides

Accessible introductions for newcomers

Semaglutide vs Tirzepatide vs Retatrutide: GLP-1 Comparison (2026)
Peptide Therapeutics
Beginner

Semaglutide vs Tirzepatide vs Retatrutide: GLP-1 Comparison (2026)

A head-to-head comparison of the three leading incretin-based therapies — semaglutide, tirzepatide, and retatrutide — covering mechanisms, weight loss data, side effects, cost, and who each one is best suited for.

Apr 29, 202617 min read
Retatrutide: The Triple-Agonist Peptide That Could Outperform Ozempic and Mounjaro
Peptide Therapeutics
Beginner

Retatrutide: The Triple-Agonist Peptide That Could Outperform Ozempic and Mounjaro

Eli Lilly's retatrutide activates three metabolic receptors at once — GLP-1, GIP, and glucagon — producing up to 24.2% weight loss in Phase 2 trials. Here's how it works, how it compares to semaglutide and tirzepatide, and what to expect from Phase 3.

Apr 23, 202614 min read
Oral Wegovy Is Here: How the GLP-1 Pill Compares to the Injection
Peptide Therapeutics
Beginner

Oral Wegovy Is Here: How the GLP-1 Pill Compares to the Injection

Novo Nordisk's oral Wegovy pill launched in January 2026, giving patients a needle-free path to GLP-1 weight loss. Here's how the 50 mg tablet stacks up against the weekly injection on efficacy, side effects, cost, and convenience.

Apr 20, 202615 min read
Epigenetic Editing vs CRISPR: When Silencing Beats Cutting (2026 Guide)
Gene Editing
Beginner

Epigenetic Editing vs CRISPR: When Silencing Beats Cutting (2026 Guide)

CRISPR cuts DNA like molecular scissors. Epigenetic editing flips genes on or off like a dimmer switch — no cuts required. Here is how the two approaches compare in 2026, and why the future likely needs both.

Apr 17, 202612 min read
Senolytics FAQ: What They Are, Do They Work, and Are They Safe?
Longevity Science
Beginner

Senolytics FAQ: What They Are, Do They Work, and Are They Safe?

What are senolytics? Do they actually work? Are they safe? A 2026 FAQ answering the most common questions about senolytic drugs and zombie cell clearance.

Apr 16, 202616 min read
GLP-1 Drugs and Alcohol Use: Can Ozempic Treat Addiction?
Peptide Therapeutics
Beginner

GLP-1 Drugs and Alcohol Use: Can Ozempic Treat Addiction?

GLP-1 alcohol addiction evidence review: does Ozempic reduce drinking? Covers Leggio's NIAAA research, 2024 Molecular Psychiatry trial, and mechanism.

Apr 8, 20266 min read
GLP-1 Drugs and Alzheimer's: The Emerging Evidence (2026)
Peptide Therapeutics
Beginner

GLP-1 Drugs and Alzheimer's: The Emerging Evidence (2026)

GLP-1 and Alzheimer's: complete 2026 evidence review covering EVOKE trials, liraglutide ELAD data, and whether semaglutide slows cognitive decline.

Apr 8, 20266 min read
GLP-1 Drugs and Kidney Disease: The FLOW Trial Explained
Peptide Therapeutics
Beginner

GLP-1 Drugs and Kidney Disease: The FLOW Trial Explained

GLP-1 and kidney disease: the FLOW trial showed semaglutide cut major kidney events 24% in diabetic CKD. Full trial breakdown and clinical implications.

Apr 8, 20266 min read
GLP-1 Drugs and Muscle Loss: What the Science Actually Shows
Peptide Therapeutics
Beginner

GLP-1 Drugs and Muscle Loss: What the Science Actually Shows

GLP-1 muscle loss explained: how much lean mass you lose on Ozempic, what STEP DEXA data shows, and evidence-based mitigation strategies.

Apr 8, 20266 min read
GLP-1 Side Effects: Complete Guide (Ozempic, Wegovy, Mounjaro)
Peptide Therapeutics
Beginner

GLP-1 Side Effects: Complete Guide (Ozempic, Wegovy, Mounjaro)

Complete evidence-based guide to GLP-1 side effects from Ozempic, Wegovy, and Mounjaro — incidence rates, dose escalation strategy, and rare risks.

Apr 8, 20267 min read
How Does Ozempic Work? GLP-1 Drugs Explained (2026 Guide)
Peptide Therapeutics
Beginner

How Does Ozempic Work? GLP-1 Drugs Explained (2026 Guide)

How does Ozempic work? A clear 2026 guide to GLP-1 drugs, the four mechanisms behind semaglutide, and how it compares to Mounjaro and Zepbound.

Apr 8, 20268 min read
How Long Does Ozempic Take to Work? (Timeline & Evidence)
Peptide Therapeutics
Beginner

How Long Does Ozempic Take to Work? (Timeline & Evidence)

How long does Ozempic take to work? Appetite drops within days, steady-state in 4–5 weeks, peak weight loss at week 68. Full evidence timeline.

Apr 8, 20266 min read
Natural Peptides in the Human Body: Insulin, Oxytocin & More
Peptide Therapeutics
Beginner

Natural Peptides in the Human Body: Insulin, Oxytocin & More

A beginner's guide to natural peptides in the body: insulin, oxytocin, glucagon, vasopressin, glutathione and how they shape therapeutic peptides.

Apr 8, 20269 min read
Ozempic Face Explained: Why Rapid Weight Loss Changes Your Look
Peptide Therapeutics
Beginner

Ozempic Face Explained: Why Rapid Weight Loss Changes Your Look

Ozempic face explained: what causes it, why rapid weight loss affects facial appearance, and prevention strategies backed by dermatology evidence.

Apr 8, 20266 min read
What Is a Peptide Bond? Amino Acid Basics Explained
Peptide Therapeutics
Beginner

What Is a Peptide Bond? Amino Acid Basics Explained

What is a peptide bond? A clear beginner's guide to amino acids, condensation reactions, and how peptide bonds shape every protein in your body.

Apr 8, 20269 min read
Peptides for Longevity: A Science-Based Beginner's Guide
Peptide Therapeutics
Beginner

Peptides for Longevity: A Science-Based Beginner's Guide

A science-based beginner's guide to peptides for longevity — Epitalon, GHK-Cu, BPC-157, MOTS-c — honest evidence and the regulatory reality.

Apr 8, 20268 min read
Peptides vs Proteins: What's the Difference? (Clear Explanation)
Peptide Therapeutics
Beginner

Peptides vs Proteins: What's the Difference? (Clear Explanation)

Peptides vs proteins: a clear explanation of size, structure, synthesis, and why the distinction matters for drug design and biology.

Apr 8, 20268 min read
What Are Peptides? The Complete Beginner's Guide (2026)
Peptide Therapeutics
Beginner

What Are Peptides? The Complete Beginner's Guide (2026)

A clear beginner's guide to what peptides are, how the body makes them, and why peptide therapeutics are transforming medicine in 2026.

Apr 8, 20268 min read
What Happens When You Stop Ozempic? (Rebound Weight Gain Explained)
Peptide Therapeutics
Beginner

What Happens When You Stop Ozempic? (Rebound Weight Gain Explained)

What happens when you stop Ozempic? Roughly two-thirds of weight lost returns within a year. Full trial data and strategies to maintain loss.

Apr 8, 20266 min read
What Is CRISPR? A Beginner's Guide to Gene Editing
Learn
Beginner

What Is CRISPR? A Beginner's Guide to Gene Editing

New to gene editing? This beginner-friendly guide explains what CRISPR is, how it works, and why it has become the most important biotechnology tool of the 21st century.

Mar 28, 20265 min read
The 12 Hallmarks of Aging: A Complete Guide
Longevity Science
Beginner

The 12 Hallmarks of Aging: A Complete Guide

The 12 hallmarks of aging provide a scientific framework for understanding why we age and where interventions might slow or reverse the process.

Mar 27, 20267 min read
Telomeres and Telomerase: The Biological Clock Inside Your Cells
Longevity Science
Beginner

Telomeres and Telomerase: The Biological Clock Inside Your Cells

Telomeres — the protective caps on your chromosomes — shorten with every cell division, acting as a biological countdown clock that shapes aging, cancer, and the limits of cellular life.

Mar 24, 20267 min read
What Is CRISPR? The Complete Beginner's Guide to Gene Editing
Gene Editing
Beginner

What Is CRISPR? The Complete Beginner's Guide to Gene Editing

A comprehensive introduction to CRISPR-Cas9 gene editing, covering its discovery, molecular mechanism, real-world applications, and the ethical questions it raises.

Mar 22, 20267 min read
What Is Synthetic Biology? Engineering Life From Scratch
Synthetic Biology
Beginner

What Is Synthetic Biology? Engineering Life From Scratch

An accessible introduction to synthetic biology — the field that applies engineering principles to living systems, with applications ranging from biofuels to programmable medicines.

Mar 19, 20267 min read
Epigenetic Clocks: Measuring Your True Biological Age
Longevity Science
Beginner

Epigenetic Clocks: Measuring Your True Biological Age

Your birthday tells you your chronological age. Epigenetic clocks reveal your biological age — and why the difference matters for longevity science.

Mar 17, 20266 min read
The Central Dogma of Biology: How DNA Becomes Protein
Learn
Beginner

The Central Dogma of Biology: How DNA Becomes Protein

DNA makes RNA. RNA makes protein. This simple rule — the Central Dogma — is the foundation of all molecular biology and the reason gene editing works.

Oct 31, 202516 min read
DNA vs RNA: What's the Difference and Why Does It Matter?
Learn
Beginner

DNA vs RNA: What's the Difference and Why Does It Matter?

DNA stores your genetic blueprint. RNA carries it out. Understanding this difference is the key to understanding everything from CRISPR to mRNA vaccines.

Oct 27, 202515 min read
How Gene Therapy Works: A Beginner's Guide
Gene Therapy
Beginner

How Gene Therapy Works: A Beginner's Guide

A beginner's guide to gene therapy — how it delivers genetic fixes into cells, the different approaches, and why it's transforming medicine.

Oct 24, 20256 min read
What Is a Gene? The Complete Beginner's Guide
Learn
Beginner

What Is a Gene? The Complete Beginner's Guide

A gene is a section of DNA that contains the instructions for building one protein. You have about 20,000 of them, and they make you you. Here's everything you need to know.

Oct 9, 202514 min read
How Gene Expression Works: From DNA to Protein
Learn
Beginner

How Gene Expression Works: From DNA to Protein

How your cells read DNA instructions and build proteins — the process that gene editing ultimately aims to control.

Oct 7, 20255 min read
What Is DNA? The Blueprint of Life Explained
Learn
Beginner

What Is DNA? The Blueprint of Life Explained

A beginner-friendly guide to DNA — what it is, how it stores genetic information, and why it matters for gene editing.

Oct 2, 20255 min read

Learning Paths

Key Glossary Terms

amino acid

The building blocks of proteins. Twenty standard amino acids are encoded by DNA and assembled in specific sequences to create proteins. A single-base mutation can change one amino acid, sometimes causing disease.

chromatin

The complex of DNA and histone proteins that makes up chromosomes. Chromatin can be 'open' (euchromatin, genes accessible) or 'closed' (heterochromatin, genes silenced), controlling gene expression.

codon

A three-nucleotide sequence in mRNA that specifies a particular amino acid (or a stop signal) during protein synthesis. The 64 possible codons map to 20 amino acids, creating redundancy in the genetic code.

DNA

Deoxyribonucleic acid — the molecule that carries genetic instructions in all living organisms. Made of two strands twisted into a double helix, with bases A, T, C, and G.

enhancer

A regulatory DNA sequence that can increase transcription of a gene, sometimes from a great distance (thousands of base pairs away). Enhancers are key targets for epigenetic editing approaches.

epigenome

The complete set of chemical modifications on DNA and histone proteins that regulate gene expression without changing the underlying DNA sequence. The epigenome changes with age and is a target for longevity research.

exon

A segment of a gene that codes for protein. After transcription, exons are spliced together to form the messenger RNA (mRNA) that is translated into protein. Many gene therapies target specific exons — for example, exon skipping in Duchenne muscular dystrophy.

fetal hemoglobin

A form of hemoglobin (HbF) naturally produced during fetal development but largely silenced after birth. Reactivating fetal hemoglobin via CRISPR editing of BCL11A is the mechanism behind Casgevy's treatment for sickle cell disease.

gene

A segment of DNA that contains instructions for making a specific protein or RNA molecule. Humans have approximately 20,000 protein-coding genes.

gene expression

The process by which information encoded in a gene is used to produce a functional protein or RNA molecule. Involves transcription (DNA to mRNA) and translation (mRNA to protein). Gene editing can modify expression levels.

genome

The complete set of DNA in an organism, including all genes and non-coding regions. The human genome contains about 3 billion base pairs.

hemoglobin

The protein in red blood cells that carries oxygen throughout the body. Mutations in hemoglobin genes cause sickle cell disease and beta-thalassemia.

histone

Proteins around which DNA is wound to form chromatin. Chemical modifications to histones (acetylation, methylation) control how tightly DNA is packed, regulating which genes are accessible for transcription.

intron

A non-coding segment of a gene that is transcribed into RNA but spliced out before translation. Introns were once considered 'junk DNA' but play important roles in gene regulation and alternative splicing.

methylation

The addition of a methyl group (CH3) to DNA, typically at cytosine bases. DNA methylation generally silences gene expression and changes predictably with age, forming the basis of epigenetic clocks.

View all 24 terms

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