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Molecular genetics

NGSS: HS‑LS3.A
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Discovery of the structure of DNADNAMolecular structure of DNAAntiparallel structure of DNA strandsLeading and lagging strands in DNA replicationDNA proofreading and repairDNA structure and replication review
Practice
DNA structure and replicationGet 3 of 4 questions to level up!
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Molecular structure of RNADNA replication and RNA transcription and translationIntro to gene expression (central dogma)The genetic codeImpact of mutations on translation into amino acidsRNA and protein synthesis review
Practice
Transcription and translationGet 3 of 4 questions to level up!
Codons and mutationsGet 3 of 4 questions to level up!
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Introduction to genetic engineeringPolymerase chain reaction (PCR)Gel electrophoresisDNA cloning and recombinant DNADNA sequencingCan we clone extinct dinosaurs from DNA preserved in their fossils?Biotechnology review
Practice
BiotechnologyGet 3 of 4 questions to level up!

About this unit

DNA serves as the genetic material for all living organisms. Learn more about the structure and synthesis of this remarkable molecule, and how genes in your DNA provide instructions for building proteins.
Biology is brought to you with support from the Amgen Foundation