Ready to take IJSO-style molecular biology practice questions?
Apply your knowledge with our collection of IJSO-style molecular biology problems.
View Molecular Biology Practice QuestionsExplore the molecules that drive life — including DNA, RNA, proteins, and the processes that control gene expression.
Learn the molecular architecture of DNA and RNA, including base pairing and backbone structure.
Learn the roles of mRNA, tRNA, and rRNA in protein synthesis, and explore other functional RNAs.
Understand how DNA is duplicated during the cell cycle with the help of key enzymes like DNA polymerase and helicase.
Review the full process from transcription in the nucleus to translation at the ribosome.
Explore how genetic information flows from DNA to RNA to proteins, regulated at multiple levels.
Discover how nucleotide triplets (codons) determine the amino acid sequence in proteins.
Factors affecting enzyme function, active site specificity, denaturation, and reaction rates.
Apply your knowledge with our collection of IJSO-style molecular biology problems.
View Molecular Biology Practice QuestionsChallenge yourself with our collection of IJSO-style mock tests in molecular biology, designed to test your problem-solving skills and understanding.
View Molecular Biology Mock Tests