Repeated Sequence (DNA)
In the study of DNA sequences, one can distinguish two main types of repeated sequence:
- Tandem repeats:
- Satellite DNA
- Minisatellite
- Microsatellite
- Interspersed repeats:
- SINEs (Short Interspersed Nuclear Elements)
- LINEs (Long Interspersed Nuclear Elements)
In primates, the majority of LINEs are LINE-1 and the majority of SINEs are Alu's.
In prokaryotes, CRISPR are arrays of alternating repeats and spacers.
Read more about Repeated Sequence (DNA): Other Types of Repeats
Famous quotes containing the words repeated and/or sequence:
“What other words, we may almost ask, are memorable and worthy to be repeated than those which love has inspired? It is wonderful that they were ever uttered. They are few and rare indeed, but, like a strain of music, they are incessantly repeated and modulated by the memory. All other words crumble off with the stucco which overlies the heart. We should not dare to repeat these now aloud. We are not competent to hear them at all times.”
—Henry David Thoreau (1817–1862)
“We have defined a story as a narrative of events arranged in their time-sequence. A plot is also a narrative of events, the emphasis falling on causality. “The king died and then the queen died” is a story. “The king died, and then the queen died of grief” is a plot. The time sequence is preserved, but the sense of causality overshadows it.”
—E.M. (Edward Morgan)