Definition of Repetitive DNARepetitive DNA: DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed highly repetitive DNA consists of short sequences, 5-100 nucleotides, repeated thousands of times in a single stretch and includes satellite DNA. Another class termed moderately repetitive DNA consists of longer sequences, about 150-300 nucleotides, dispersed evenly throughout the genome, and includes what are called Alu sequences and transposons. Last Editorial Review: 6/14/2012
Back to MedTerms online medical dictionary A-Z List Need help identifying pills and medications? |
Get the latest health and medical information delivered direct to your inbox FREE!


