Depending on the title, there may be more or fewer duties required for the position. While smaller offices may have office assistants perform the duties of secretaries or file clerks, larger offices might have their assistants stick to one duty, such as filing.
Updated August 03, 2017. DNA mutations happen when there are changes in the nucleotide sequence that makes up the strand of DNA. This can be caused by random mistakes in DNA replication or even an environmental influence like UV rays or chemicals.
The answer to this question is simple. A mutation would occur. Believe it or not, mutations occur in your body all the time. Even so, most mutations are harmless, because 97% â¦ of DNA is absolutely useless, and does nothing in your body.