The use of a beat or a rhythm to remember something is
a.rap mnemonics.
b.lyrical mnemonics.
c.music mnemonics.
d.beat mnemonics.

The answer is Music Mnemonics. Mnemonic is originally coming from the Ancient Greek word means “memory”. It is the study and development of systems for improving and assisting the memory. Mnemonic techniques are more specific memory aids. Music Mnemonic is a way we used to remember song lyrics and rhythmic movement.

1. messenger rna (mrna): it is formed as a result of transcription of dna and contains the code for amino acids which will form part of protein. thus, this is the most crucial rna and contains protein code
2. transfer rna: this is involved in bringing the correct  amino acids to ribosomes where they attach in the growing peptide chain
3. ribosomoal rna: they form an integral part of small and large subunit of ribosomes, organelles at which protein synthesis takes place.