1. Messenger RNA (mRNA)

* Function: mRNA carries the genetic code from DNA in the nucleus to the ribosomes in the cytoplasm, where protein synthesis occurs. It acts as a blueprint for building proteins.

* Process: During transcription, DNA is copied into mRNA. This mRNA then travels out of the nucleus and binds to ribosomes. The ribosomes read the mRNA sequence and translate it into a chain of amino acids, ultimately forming a protein.

2. Transfer RNA (tRNA)

* Function: tRNA acts as a molecular "delivery truck" for amino acids during protein synthesis.

* Process: Each tRNA molecule has a specific anticodon that matches a codon on the mRNA. It picks up the corresponding amino acid from the cytoplasm and brings it to the ribosome. The ribosome then adds the amino acid to the growing polypeptide chain, following the instructions from the mRNA.

3. Ribosomal RNA (rRNA)

* Function: rRNA is a major component of ribosomes, the protein-making machinery of the cell.

* Process: rRNA provides the structural framework of the ribosome and helps to catalyze the formation of peptide bonds between amino acids during protein synthesis.

In summary:

* mRNA: Carries the genetic code from DNA to the ribosomes.

* tRNA: Delivers amino acids to the ribosomes for protein synthesis.

* rRNA: Forms the structural basis of ribosomes and assists in protein synthesis.