Genes carry the genetic code, which is a collection of “codons” of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). These codons contain the information about polypeptide chain sequences.
The proteins are synthesized by the transcription and translation of the genetic code, which carry different functions. Some of the functions of proteins include, they act as ion channels, pumps and gates.
Thus, the blanks can be filled with protein; channels, gates, pumps.