insertion

views updated May 23 2018

in·ser·tion / inˈsərshən/ • n. 1. the action of inserting something: the insertion of a line or two into the script. ∎  the placing of a spacecraft or satellite into an orbit or trajectory.2. a thing that is inserted, in particular: ∎  an amendment or addition inserted in a text. ∎  each appearance of an advertisement in a newspaper or periodical. ∎  an ornamental section of cloth or needlework inserted into the plain material of a garment.3. Anat. & Zool. the manner or place of attachment of an organ: close to the point of leaf insertion. ∎  the manner or place of attachment of a muscle to the part that it moves: the names of the muscles and their insertions on the eyeball.4. Biol. the addition of extra DNA or RNA into a section of genetic material.

insertion

views updated May 11 2018

insertion
1. (of muscles) See voluntary muscle.

2. (in genetics) A point mutation in which an extra nucleotide base is added to the DNA sequence. This results in the misreading of the base sequence during the translation stage of protein synthesis.

insertion

views updated May 23 2018

insertion A mutation where one or more nucleotides are inserted into a DNA sequence.

insertion

views updated May 11 2018

insertion (in-ser-shŏn) n. (in anatomy) the point of attachment of a muscle (e.g. to a bone) that is relatively movable when the muscle contracts. Compare origin.