DNA

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These behaviors are associated with changes in the content of repetitive DNA, Figure 5 (below, right).
To assess the presence or absence of a B2 integration in orthologous loci, primer sets were designed that flank the B2 element insertions (Figure la) utilizing PrimerSelect from the Lasergene suite of software tools (DNASTAR, Inc), and BLAST searches were performed to verify lack of homology of the primers to repetitive DNA.
Telomeres are repetitive DNA sequences at the ends of chromosomes that shorten with aging, cell division, and inflammation.
Repetitive DNA Sequences as probes for Mycobacterium tuberculosis.
The variability in DNA amount has often been attributed to loss or addition of highly repetitive DNA sequences rather than to the AT- or GC-rich sequences in the genome (Martel et al.
Comparison of various repetitive DNA elements as genetic markers for strain differentiation and epidemiology of Mycobacterium tuberculosis.
In addition, the region is rich in repetitive DNA with several Alu repeats which could facilitate homologous recombination with loci throughout the genome.
Physical localisation of repetitive DNA sequences in Alstroemeria: karyotyping of two species with species-specific and ribosomal DNA.
Analysis of a repetitive DNA sequence from Bordetella pertussis and its application to the diagnosis of pertussis using the polymerase chain reaction.
This finding may suggest that wheat BAC clones are especially prone to DNA rearrangements, since the wheat genome contains up to 80% of repetitive DNA (Smith and Flavell, 1975).
An Austrian biologist theorized that the erosion of telomeres, highly repetitive DNA at the end of chromosomes, might function as a kind of internal clock that determines when a species will become extinct.
Other crucial markers were so-called microsatellites, regions of repetitive DNA that can expand or shrink from one generation to the next.
Through telomeres, caps composed of repetitive DNA sequences at the ends of chromosomes.
Believed to be the original ancestral grass, it has remained genetically unaltered for thousands of years and, combined with its small number of chromosomes and very little repetitive DNA, provides the ideal subject for scientific study.
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