Both lie in 1st column of the Periodic Table. (contain the members of the Alkali Metals. Members within a family, column, or elements tend to have similar<span> chemical properties.</span>
The ribosomal RNAs complex with proteins to form two subunits, the large subunit (LSU) and small subunit (SSU). During translation, mRNA is sandwiched between the small and large subunits, and the ribosome catalyzes the formation of a peptide bond between the two amino acids that are contained in the rRNA.
Migration i think is the answer