1. Repetitive DNA.
- Author
-
Bailey, J. Craig, PhD and Frestedt, Joy, PhD
- Subjects
Repeated sequence (Genetics) ,Non-coding DNA ,Nucleotide sequence - Abstract
The eukaryotic nuclear genome is characterized by repetitive DNA elements in the form of nucleotide sequences of varying length and base composition, either localized to a particular region of the genome or dispersed throughout it (for example, on different chromosomes). Some of these DNA elements are repeated only a few times, whereas others may be repeated millions or billions of times; thus, the percentage of the total genome represented by repetitive DNA varies widely among taxa. Tandem repeats are repetitive DNA sequences that are adjacent to each other in a block or array, whereas interspersed repeats are found throughout the genome, surrounded by unique (nonrepetitive) DNA sequences.
- Published
- 2023