On Cisco QOS – PQ, CQ, WFQ etc.

I know that in Cisco 2600, QOS traffic can be prioritized according to L3 protocol eg. SNA, DECnet, IP, IPX, appletTalk…
Question 1: Can I priorotize traffic according to (L4) TCP Port? e.g. TCP 4105, TCP 4103, HTTP 80, SMTP 25, POP3 110….
Q2 : Can I also do this on WRED, GTS, FRTS, LFI, RTP etc. ?