Will a Ubuntu LiveCD be affected by a BIOS virus?

Solution 1:

... If the PC has a BIOS virus ...

Which virus is in the BIOS of that PC?

The answer depends on that data. Some viruses do affect the content of the OS in RAM, some don't.

However, if it's a Live CD, it's permanently closed to further writing, and the virus could not alter what's on the LiveCD.