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:
“When we awoke, we found a heavy dew on our blankets. I lay awake very early, and listened to the clear, shrill ah, te te, te te, te of the white-throated sparrow, repeated at short intervals, without the least variation, for half an hour, as if it could not enough express its happiness. Whether my companions heard it or not, I know not, but it was a kind of matins to me, and the event of the forenoon.”
—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)