"This is a biology laboratory."

Translation: Bu bir biyoloji laboratuvarı.

[AneurinEE]

Is it wrong to place bir between biyoloji and laboratuvarı?

[AlexinNotTurkey]

Yes...bioloji is not an adjective here, but a noun. Since this is a noun compound, it must come before.

[BenjaminHo5]

Thanks, I was wondering the same thing.

[dosszl95]

How is it a noun though? Isn't biology an adjective that describes the type of laboratory (noun)?

[LuyelFinn]

I think you have to break it down as "a laboratory of biology" to understand that here, biology counts as a noun. That's why it's "biyoloji laboratuvari", with the "i" at the end of "laboratuvar". If it were an adjective, it would be "biyoloji laboratuvar" (as in "küçük laboratuvar"), but apparently it doesn't work like that.

[EkeKopl]

Can we omit bir?

[AyyashElmota]

is there a "j" in Turkish alphabets?

[sayel.abba]

Yep