take a look at the UCSC website, open the genome browser (https://genome.ucsc.edu), choose the species and genome and you'll have a view to your genes. there are lot of option but liking on the gene will give you access to your data. but it's not all, you got a lot of interesting tools you need to learn.
There are some tools around to check for alternative splicing in your gene, but of course it depends on the organism that you are studying. Everything is smooth for human and model organisms, but for exotic ones the problem will be worst. Check this out: