Back mutation
a mutation of an existing mutant gene that restores it to its previous form.
noun
(genetics) the reversion of a mutant to the original phenotype
noun
see reverse mutation
Read Also:
- Back number
an out-of-date issue of a serial publication. informal. anything out-of-date. historical examples if i’ve got to be a back number i want to romp right back far enough to have some fun out of it. at good old siwash george fitch if i have i’m a back number—and i’d a great deal rather be dead. […]
- Back o' beyond
remote; out-of-the-way; isolated.
- Back o' bourke
adverb (austral) in a remote or backward place
- Back of
the rear part of the human body, extending from the neck to the lower end of the spine. the part of the body of animals corresponding to the human back. the rear portion of any part of the body: the back of the head. the whole body, with reference to clothing: the clothes on his […]
- Back of beyond
remote; out-of-the-way; isolated. extremely remote. for example, john’s about to move to some tiny island, truly back of beyond. this term, used as a humorous exaggeration, relies on the meaning of beyond (or the beyond) as “a distant place, beyond human experience.” [ early 1800s ]