Final answer:
CRISPR can be used for precise genome editing such as improving crop quality, increasing drought tolerance, treating human diseases, and determining gene function, but not for random or non-targeted mutations.
Step-by-step explanation:
CRISPR is a genome editing tool which can be utilized in various ways. It may be used to remove and replace the gene of a soybean to improve the quality of soybean oil, to remove and replace the gene of corn to increase the plant's drought tolerance, to treat human diseases by deleting and replacing harmful mutations, and to inactivate genes to determine the role of the gene in the target cell. However, it is not typically used for randomly inducing change to nonspecific regions of DNA within a mouse with unknown consequences, nor for impairing or altering non-targeted genes within tobacco, as CRISPR/Cas systems allow for precise targeting and editing of specific genetic sequences.