how does it get damaged?
It can be damaged by many sorts of mutagens, which change the DNA sequence.
DNA
DNA can be damaged by many sorts of mutagens, which change the DNA sequence.
what is the definition of the term gene It is a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. when was the aforementioned former term discovered? 1869 by whom? Friedrich Miescher who was he ? He was a Swiss physician and biologist. did he have any other contributions apart from this? UNANSWERABLE how can the structure that he discovered be defined? Deoxyribonucleic acid (; DNA) is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instruction. what are its features? They carry genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.
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DNA [SEP] Damage
DNA can be damaged by many sorts of mutagens, which change the DNA sequence. Mutagens include oxidizing agents, alkylating agents and also high-energy electromagnetic radiation such as ultraviolet light and X-rays. The type of DNA damage produced depends on the type of mutagen. For example, UV light can damage DNA by producing thymine dimers, which are cross-links between pyrimidine bases. On the other hand, oxidants such as free radicals or hydrogen peroxide produce multiple forms of damage, including base modifications, particularly of guanosine, and double-strand breaks. A typical human cell contains about 150,000 bases that have suffered oxidative damage. Of these oxidative lesions, the most dangerous are double-strand breaks, as these are difficult to repair and can produce point mutations, insertions, deletions from the DNA sequence, and chromosomal translocations.