Final answer:
The ribosome switches on genes responsible for the development of new synapses in genetics.
Step-by-step explanation:
In the context of genetics, the ribosome switches on genes responsible for the development of new synapses. The ribosome is the cellular machinery that interacts with messenger RNA (mRNA) to direct protein synthesis. mRNA carries the genetic message from the DNA to the ribosome, and the ribosome then reads the mRNA in sets of three bases known as codons to produce proteins.