| Histones have lysine tails, which can be acetylated in a post-translational modification step. |
| With multiple cars tightly packed around racetracks, increased visibility was a natural modification. |
| The 'Barlow lens', a modification of this telescope lens, is a negative achromatic combination of flint glass and crown glass. |
| Solid-body guitars were combined with new sonic modification devices such as distortion boxes and wah-wah pedals. |
| Most bolt actions will fit the cartridge without bolt modification and bullets up to.35 caliber can be fitted into some variation of the case. |
| If constipation persists despite dietary modification and increased physical activity, a stool softener given with meals can be helpful. |
