Junk DNA
Videos
Junk DNA is a DNA sequence that has no known biological function. Most organisms have some junk DNA in their genomes—mostly pseudogenes and fragments of transposons and endogenized viruses—but it is p
Francis Crick and others promoted the idea that transposons were examples of selfish DNA and were responsible for the proliferation of junk DNA.
Pseudogene
Videos
Pseudogenes are nonfunctional segments of DNA that resemble functional genes. Pseudogenes can be formed from both protein-coding genes and non-coding genes. In the case of protein-coding genes, most p
Junk DNA
…Junk DNA (non-functional DNA) is a DNA sequence that has no known biological function. Most organisms have some junk DNA in their genomes—mostly pseudogenes and fragments of transposons and endogenized viruses—but it is possible that some organisms have substantial amounts of junk DNA. All protein-coding…
Processed pseudogene production
One way a pseudogene may arise
2 ways a pseudogene may be produced
Drosophila melanogaster