Answer:
The protein phosphatase-1 dephosphorylates the residues of serine, which are phosphorylated by the protein kinase A. The cyclic-AMP inducible genes are stimulated by CREB that is phosphorylated by protein kinase A. Thus, overexpression of protein phosphatase 1 would prevent their induction.
Although, protein phosphatase 1 would not influence the function of cAMP-gated ligand channels, as these channels are opened directly by binding of cAMP rather than by protein phosphorylation.
Answer:
there is no such thing as a free lunch
Explanation:
The maxim "There ain't no such thing as a free lunch" also known as "there is no such thing as a free lunch" (TINSTAAFL), indicates the cost of decision-making and it's aftermath.
In this senerio, a particular genetic strain of Drosophila melanogaster reproduce at an earlier age than do other strains of this species at the expense of its lifecycle as this will cause a shortage of its lifecycle which is a negative aftermath compared to other strains that do not reproduce early.
I'm going with C. It may be wrong but I think it's C.