In the scope of VCE do we state that a second messenger protein is synthesised?
A component of the answer to one of the questions on a VCAA exam stated that a "second messenger protein is synthesised"
That's not true - the signal transduction pathway basically is:
Ligand binds to GCPR -> GCPR activates G protein -> A second messenger is produced.
(I've left out a few steps).
There are examples of second messenger proteins, but they aren't produced as a response to a signal (they are activated.)
(edit: forgot about a pathway).
But yeah. What T-Rav said. Signal transduction is really, really complicated. By necessity, it's simplified here.
What is a probe?
Are ALL probes DNA probes? Because DNA probe was not specified, I assumed a probe was any molecule that 'tags' or marks another molecule. What do you say?
A probe can mean a lot of things, but if the question is talking about DNA, it's probably fair to assume it's a DNA probe.