verb
alter
AWL-tur/ˈɔːltər/
To change or make something different.
The tailor alters the jacket sleeve.

Etymology
Latin alter meant “the other of two.” It supplied a verb meaning “to change”: to alter something is to make it other than it was.
In context
using CRISPR-Cas9 or any other gene editing technology to alter the DNA of humans in a heritable fashion.
More examples
- They altered the schedule after the storm.
- Nothing will alter my decision.
- The new road is altering the landscape.
Forms
alter · alters · altered · altering
alteration noun — a change or adjustment