Caption: DNA silent point mutation. Animation showing a silent point mutation in the replication of DNA (deoxyribonucleic acid). As the DNA unravels, a helicase enzyme (red) is shown moving along the helix, separating the complementary strands. Labels appear showing the genetic code, the sequence of the nucleotide bases along a strand (cytosine, C, blue; guanine, G, yellow; adenine, A, green; thymine, T, red). A DNA polymerase enzyme is shown replicating a new strand and making a mistake (red area). The new complementary strands are formed, completing the replication process and the animation zooms in on the mistake (a mutation). Adjacent groups of three bases, known as codons, code for the production of amino acids (the basis of proteins). The codon affected here is GTT (for the amino acid valine). This has mutated to GTC, which will still produce the amino acid valine. This is known as a silent mutation (one producing no change), as opposed to mutations that produce nonsense or change (missense).

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Keywords: adenine, amino acid, amino acids, animated, animation, artwork, base, bases, biochemical, biochemistry, biological, biology, codon, codons, complementary strands, cytosine, deoxyribonucleic acid, dna, dna polymerase, enzyme, enzymes, genes, genetic, genetic code, genetics, graphic, gtc, gtt, guanine, helicase, illustration, mistake, molecular, mutate, mutated, mutation, no-one, nobody, nucleotide, nucleotides, replicate, replicating, replication, silent, strands, thymine, valine

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DNA silent point mutation, animation

K005/6623 Rights Managed

Downloadable master

Duration: 00:00:40.04

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 1.0G


Capture format: QuickTime Animation

Codec: PNG

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