Codon One vs HistoGrams⁺

Codon One helps you learn biology step by step, with short lessons, quick quizzes, flashcards, and a searchable glossary. Build a solid foundation in molecular biology, genetics, evolution, cell biology, development, and the history of science. Each section breaks complex ideas into clear explanations, diagrams, and focused checks for understanding. Core course (Modules) Module 1: Chemistry of Life – atoms & elements, bonds, water, pH, biomolecules Module 2: Genetics – chromosomes, replication, transcription, translation, regulation Module 3: Evolution – history of life, phylogeny, selection, drift, speciation, molecular evolution Module 4: History of Science – ideas, methods, and experiments that shaped modern biology Module 5: Cell Biology – membranes & transport, organelles & energy, cytoskeleton, signaling, cell division Module 6: Development – fertilization & body plans, differentiation, pattern formation & morphogenesis, growth & repair, evo-devo Additional topics are planned for future updates, including Animal Physiology, Microbiology & Immunology, Plant Biology, and more. Glossary & Flashcards Look up the essentials in one place - key terms from every module, plus the 20 amino acids and the nucleobases. Turn any topic into a flashcard deck and review with smart, spaced practice that focuses on the cards you find hardest. Quiz & Progress Practice across biochemistry, genetics, evolution, cell biology, development, and science history in a dedicated quiz area. Track improvement with success rates and per-topic stats, and let the app resurface your weak questions for targeted review. Keep a daily streak going to build a steady habit. Got a good question? Submit it directly from the app. Built-in Tools Sequence Operator: paste DNA, reverse or complement it, transcribe to RNA, translate in all six reading frames, and view length, GC content, and melting temperature. Codon Picker: explore the genetic code, see which codons map to each amino acid or stop signal, and tweak bases to see the effect. Triplet Encoder: write a message in amino-acid single-letter code and encode it as a DNA triplet sequence, then decode it by translation. Found a bug or have suggestions? Email info@codon-one.com - we read every message.

Hello... Dear students, It has always been a tough task to finish entire syllabus before exams. Many things go unread or unrevised due to time constrain. Let's make it simple now with "HistoGrams+"...! In this new update apart from Histology; many other subjects and topics particularly practical point of view will be included like physiology, biochemistry, pathology etc. *In Histology*- almost all the topics are covered under 19 Chapters. A comprehensive note and a related hand-drawn diagrams will surely make each topic easy and quick to revise in a short period of time. Total 130+ such diagrams ( more will be added regularly ) will also provide a reference point for preparing workbooks. Similarly, in *Neuroanatomy demo* - all concerned demo topics are covered with hand drawn diagrams, real images and video links. *In Physiology Practicals* - details of practicals including experimental, haematology and clinical have been included. Each topic is having relevant notes and video links which will make it comprehensive. Overall, we have tried to include everything which is concerned and important. Definitely a quick reference cum revision guide before exams. Your feedbacks are precious and welcome. Stay tuned for regular updates. Wishes for studies..!! Regards, Team HistoGrams