Subject: Is it possible that our body make new genes

Mutations result in gaining resistance...... by the collection of various 
mutations, will our body be able to make a new gene by itself? for eg. in 
prokaryates, antibiotic resistant genes are not present initially... but got 
over a period of time on exposure to the same (might be due to mutation). 
Similarly can collection of mutations (over a period of time) in the chromatin 
of ours yield new genes?..... Or do we gain new genes by endosymbiosis or by 
transposons?

Re: Is it possible that our body make new genes