(Sorry about the format, I couldn't get the hand converter to take the hand.)

PokerStars Game #5083061583: Tournament #25537123, $5.00+$0.50 Holdem No Limit - Level VII (100/200) - 2006/05/28 - 21:35:15 (ET)
Table 25537123 1 9-max Seat #2 is the button
Seat 1: sullybob (2390 in chips)
Seat 2: DWayneBos (11110 in chips)
sullybob: posts the ante 25
DWayneBos: posts the ante 25
DWayneBos: posts small blind 100
sullybob: posts big blind 200
*** HOLE CARDS ***
Dealt to DWayneBos [4c 2s]
DWayneBos: calls 100
sullybob: checks
*** FLOP *** [2h 6h 4h]
sullybob: checks
DWayneBos: bets 200
sullybob: calls 200
*** TURN *** [2h 6h 4h] [Jc]
sullybob: checks
DWayneBos: bets 400
sullybob: raises 1565 to 1965 and is all-in
DWayneBos: ????

Can I really lay then down, heads up, after the check preflop and the call on the flop?