For honours biochemistry it says that it is recommended to have Math 1b03. My schedule is already pretty heavy so I am wondering if it would it be a good idea to take it after first year like in the summer or during second?

You don't really need it at all. Only take it if you're interested.

Also no need to post the same thread in two sections - it'll show up on the home page no matter what.

Thanks for your help , on both things!