Can I transfer bitcoins to my bank account?
I think yes you can transfer your bitcoin thru bank account. But it depends to bank if they allowed or accept bitcoins. Because not all bank are they allowed to receive bitcoins.
Around the world very few banks accept bitcoin. So, it is upon the locality you reside and if what you have asked is to convert bitcoin to fiat, then it is possible. Almost each and every bank gives access to the bitcoin related transaction, and with some there are limitations in the transaction value.