Do UEFI Mode and Legacy Mode have different Partitions?

[MSMPlayz]

So, I have the new BIOS (the one that came out with Windows 8). I have both UEFI and Legacy boot option. I'm not sure, but do these 2 boot options have separate partitions that you can not view in other boot mode. Plus, my disk is GPT, I normally use UEFI but if I switched to Legacy mode, would it use a MBR. I'm asking this one because I could have a infected MBR Code in my Legacy boot that can not be viewed in UEFI. This is very complicated. Thanks for all your replies, they are really appreciated.

 

[Crixilian]

what do you mean of "a infected code" ?
you can boot your windows in legacy with GPT type, you must change it to MBR first

 

[MSMPlayz]

By changing it to Legacy, it probably has an MBR Code. MBR Codes can be infected. My disk is GPT so if I boot with Legacy is there an MBR Code. That's what I mean. Thanks for your reply!