BeginnerDNA and Genes
#12What Is DNA?
A guided look at the molecule that stores biological instructions.
Starts the DNA and Genes series
8 min read6 termsCovers 6 glossary terms
Read lessonDNA and Genes5 lessons
DNA and Genes
The molecule of inheritance, gene structure, and how genetic information is organized.
Use this hub as a guided doorway into the topic: start with the first lesson, build the vocabulary, then branch into related explainers.
Lightweight learning path
Follow how information is stored
Move from DNA as stored information into base pairing, gene architecture, faithful copying, and chromosome packaging.
- Step 18 min readWhat Is DNA?
- Step 29 min readDNA Structure and Base Pairing
- Step 310 min readInside a Gene: Promoters, Exons, Introns, and Regulatory DNA
Hub lessons
Explore DNA and Genes
These articles are the current entry points for this topic. Start with the first path module, then branch outward.
BeginnerDNA and Genes
#13DNA Structure and Base Pairing
How nucleotides, strand direction, and complementary bases make DNA a reliable information molecule.
Part 2 of 5 in DNA and Genes · Builds on: What Is DNA?
9 min read6 termsCovers 6 glossary terms
Read lessonIntermediateDNA and Genes
#14Inside a Gene: Promoters, Exons, Introns, and Regulatory DNA
A beginner-friendly map of the DNA regions that help a gene be read, processed, and regulated.
Part 3 of 5 in DNA and Genes · Builds on: DNA Structure and Base Pairing
10 min read6 termsCovers 6 glossary terms
Read lessonIntermediateDNA and Genes
#15Copying and Protecting DNA
How replication, proofreading, damage responses, and repair help preserve genetic information.
Part 4 of 5 in DNA and Genes · Builds on: Inside a Gene: Promoters, Exons, Introns, and Regulatory DNA
11 min read6 termsCovers 6 glossary terms
Read lessonBeginnerDNA and Genes
#16Packaging DNA: Chromatin and Chromosomes
How cells fit long DNA molecules into the nucleus while keeping selected regions usable.
Part 5 of 5 in DNA and Genes · Builds on: Copying and Protecting DNA
9 min read6 termsCovers 6 glossary terms
Read lessonGlossary support
Terms that anchor this topic
These definitions help keep the vocabulary attached to the ideas instead of floating on their own.
Centromere
GeneticsThe constricted region of a chromosome where sister chromatids are most tightly joined.
Allele
GeneticsOne of two or more versions of a gene at the same location on a chromosome.
Base pair
DNATwo nucleotides on opposite DNA strands held together by hydrogen bonds (A-T, G-C).
Chromosome
GeneticsA long, organized package of DNA and protein found in the cell nucleus.
DNA
DNADeoxyribonucleic acid: the double-stranded molecule that stores genetic information.
Double helix
DNAThe twisted ladder-like shape formed by the two strands of a DNA molecule.
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Models that support this hub
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