what are its variations?
Many mutagens are not mutagenic by themselves, but can form mutagenic metabolites through cellular processes, for example through the activity of the cytochrome P450 system and other oxygenases such as cyclooxygenase. Such mutagens are called promutagens.
Mutagen
 Many mutagens are not mutagenic by themselves, but can form mutagenic metabolites through cellular processes, for example through the activity of the cytochrome P450 system and other oxygenases such as cyclooxygenase. Such mutagens are called promutagens.
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. how does it get damaged? It can be damaged by many sorts of mutagens, which change the DNA sequence. what are these things that cause the damage? It is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level.
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Mutagen [SEP] Types
Mutagens may be of physical, chemical or biological origin. They may act directly on the DNA, causing direct damage to the DNA, and most often result in replication error. Some however may act on the replication mechanism and chromosomal partition. Many mutagens are not mutagenic by themselves, but can form mutagenic metabolites through cellular processes, for example through the activity of the cytochrome P450 system and other oxygenases such as cyclooxygenase. Such mutagens are called promutagens.