DNA decomposition
[/ˌdiːɛnˈeɪ dɪˌkɒmpəˈzɪʃən/]
nounpl: DNA decompositions
decomposição do DNA
1. The chemical and biological breakdown of deoxyribonucleic acid molecules into simpler components over time
DNA decomposition occurs naturally after an organism dies, with degradation accelerated by environmental factors like temperature and humidity.
A decomposição do DNA ocorre naturalmente após a morte de um organismo, com degradação acelerada por fatores ambientais como temperatura e umidade.
2. In forensic science, the process of DNA degradation in biological evidence that affects analysis and identification
The investigator noted that DNA decomposition in the aged sample made genetic analysis more challenging.
O investigador observou que a decomposição do DNA na amostra envelhecida tornou a análise genética mais desafiadora.
3. In molecular biology, the enzymatic breakdown of DNA strands by nucleases and environmental conditions
DNA decomposition rates vary depending on storage conditions and the presence of protective enzymes.
As taxas de decomposição do DNA variam dependendo das condições de armazenamento e da presença de enzimas protetoras.
This term is primarily used in scientific, forensic, and academic contexts in both Brazil and the United States. In Brazilian Portuguese, 'decomposição do DNA' and 'degradação do DNA' are used interchangeably in scientific literature. The concept is particularly important in forensic anthropology and criminal investigation, where DNA decomposition affects the viability of genetic evidence. In Portugal, 'ADN' (ácido desoxirribonucleico) is the preferred acronym over 'DNA'.
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