DNA sequences that are present in many copies per chromosome set. Repetitive DNA sequences may be closely linked (eg satellite DNA or VNTR loci) or dispersed throughout the genome or parts of the genome (eg alu family).
repetitive DNA
Nucleotide sequences, usually noncoding, that are present in many copies in a eukaryotic genome. The repeated units may be short and arranged tandemly (in series) or long and dispersed in the genome.
replication ...
Repetitive DNA DNA sequences which are repeated more than once in each haploid copy of the genome. See interspersed repetitive DNA, tandemly repeated DNA and satellite DNA.
Repetitive DNA Sequences of varying lengths that occur in multiple copies in the genome; it represents much of the human genome.
Reporter gene See: marker ...
Repetitive DNA.
Both groups verified the presence of large amounts of repetitive DNA. In fact, this DNA — with similar sequences occurring over and over — is one of the main obstacles to assembling the DNA sequences in proper order.
repetitive DNA
A stretch of DNA consisting of multiple repeats of a motif. See also satellite, minisatellite and microsatellite DNA.
Related Terms:
Deoxyribonucleic acid (DNA) ...
Repetitive DNA: A surprising portion of any genome consists not of genes or structural elements, but of frequently repeated simple sequences. These may be short repeats just a few nt long, like CACACA etc.
[+] Repetitive DNA sequences (21 P)
Pages in category "DNA"
The following 179 pages are in this category, out of 179 total. This list may not reflect recent changes (learn more).
Interspersed repetitive DNA sequences function as isolating mechanisms. These repeats protect newly evolving gene sequences from being overwritten by gene conversion, due to the creation of non-homologies between otherwise homologous DNA sequences.
Protein complexes that form kinetochores in the centromere regions of sister chromatids are attached to specific repetitive DNA sequences, known as satellite DNA, which are similar in each chromosome.
Genomes differ in size, in part because they have different proportions of repetitive DNA. For example, the total genome size of the puffer fish is about one-tenth the size of the human genome.
Composed of repetitive DNA, stains dark bands in G-banding. (Cf. Euchromatin.)
Related Terms:
Chromosome
The term was proposed by Waldeyer (1888) for the individual threads within a cell nucleus (gk. chroma, colour; soma, body).
It has a very small genome (130-140 Mbp), five chromosomes and contains almost no repetitive DNA. Its genome will be completely sequenced by the end of 2000.
Microsatellite sequences are repetitive DNA sequences usually several base pairs in length. Microsatellite sequences are composed of non-coding DNA and are not parts of genes.
Repetitive dna (← links)
Gutta serena (← links)
Termination codons (← links)
Codons (← links)
Stop codons (← links)
Virino (← links)
Termination sequence (← links)
Numericlature (← links)
Terminations (← links) ...
 See also: DNA, Sequence, Genome, Chromosome, Organ
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