Classroom Resources

This animation describes the typical ratios of bases in DNA.

This animation describes how only a small part of the human genome directly codes for proteins.

This animation shows how mutations can arise when DNA is damaged.

This animation describes a genetic engineering technique called DNA cloning, which can be used to make bacteria express a foreign gene, typically from another species.

This animation describes the set of chromosomes usually found in humans.

This animation shows how the Human Genome Project sequenced the human genome, which contains over 3 billion nucleotides.

This animation shows how mRNA is edited to remove noncoding regions.

This animation shows how DNA molecules are packed up into chromosomes.

This animation describes the general structure of DNA: two strands of nucleotides that pair in a predictable way.

This animation shows a schematic representation of the mechanism of DNA replication.

This animation shows how one molecule of double-stranded DNA is copied into two molecules of double-stranded DNA.

This animation shows the process of DNA replication, including details about how the mechanism differs between the leading and lagging strand.