DNA nucleotides
DNA nucleotides (black letter tiles) matched in groups of two to amino acids (red letter tiles).
letter tiles,nucleotides dna,amino acids,dna nucleotides
- ID: 15682
- Source: DNALC.DNAi
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15681. DNA nucleotides represented as wooden tiles
Changes in the DNA are reflected in the protein product. There is a correlation between what happens to the genetic sequence and the resulting protein sequence.
16493. Concept 22: DNA words are three letters long.
Three DNA nucleotides form a codon and specifiy amino acids.
15577. Paper stack (Human Genome)
As represented by this huge stack of paper, the human genome contains more than three billion nucleotides or DNA "letters."
15505. Synthesizing human insulin using recombinant DNA, 3D animation with no audio
Synthesizing human insulin using recombinant DNA, 3D animation with no audio
16515. Animation 23: A gene is a discrete sequence of DNA nucleotides.
Fred Sanger outlines DNA sequencing.
1445. DNA
Because it contains the directions for assembling the components of the cell, DNA is often thought of as the "instruction book" for assembling life.
15513. How many bases code for an amino acid?, 3D animation with basic narration
DNA has four "letters" that must specify the 20 different amino acids that make up proteins. Combinatorially, using three DNA letters for one amino acid makes the most sense.
555. Model Organisms
A human is a complicated organism, and it is considered unethical to do many kinds of experiments on human subjects. For these reasons, biologists often use simpler “model” organisms that are easy to keep and manipulate in the laboratory.
16514. Concept 23: A gene is a discrete sequence of DNA nucleotides.
Gene analysis take a giant leap using DNA sequencing.
16429. Gallery 19: Erwin Chargaff, 1947
Erwin Chargaff was the first to accurately measure nucleotide amounts in DNA.