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DNA replication (schematic)

An animation showing that the structure of DNA, discovered by James Watson and Francis Crick, suggests a mechanism of DNA replication. The double helix unwinds, and each strand acts as a template for the construction of the new DNA molecule.

This resource is from the ...

DNA replication (basic detail)

Using information from molecular research, this 3-D animation shows how DNA is replicated at the molecular level. It involves an enzyme that unwinds the DNA, and other enzymes that copy the two resulting strands.

This resource is part of the ...

Genetic code

A 3-D movie that journeys into the human cell revealing the genetic code.

Courtesy: National Human Genome Research Institute 

This resource is part of the Post 16 genetics and genomics collection of resources.

Telomere 3-D

A 3-D movie that journeys into the human cell revealing a chromosome’s telomeres.

Courtesy: National Human Genome Research Institute.

This resource is part of the Post 16 genetics and genomics collection of resources.

Gene 3-D

A 3-D movie that journeys into the human cell revealing a gene.

Courtesy: National Human Genome Research Institute.

This resource is part of the Post 16 genetics and genomics collection of resources.

Coding sequences in DNA

Of the 3 billion letters in the human genome, only 1% directly code for proteins. Of the rest, about 25% make up genes and their regulatory elements. The functions of the remaining letters are still unclear.

Used with permission from the Howard Hughes Medical Institute, Copyright (2003).  All rights...

Base Pair 3-D

A 3-D movie that journeys into the human cell revealing base pairs.

Courtesy: National Human Genome Research Institute.

This resource is part of the Post 16 genetics and genomics collection of resources.

The chemical structure of DNA

This video looks at how the chemical properties of DNA can be harnessed for a variety of biotechnology applications.

Used with permission from the Howard Hughes Medical Institute, Copyright (2003).  All rights reserved. www.BioInteractive.org.

This resource is part of the Post 16 genetics and ...

DNA packaging

This animation describes how DNA is tightly packed in the nucleus of every cell. DNA wraps around special proteins called histones, which form loops of DNA called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin. Chromatin in turn forms larger loops and coils to form...

Watson constructing base pair models

During the process of trying to elucidate the structure of DNA, Jim Watson made some cardboard models to try to understand how DNA nucleotides are paired. It helped him visualize how hydrogen atoms of paired nucleotides interact with each other to form a symmetrical structure that fits the double helix model.

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