Given below are two statements (A and B) each with some blanks. Select the option which correctly fills up the blanks in the statements :

Statements:

A. The ribosome consists of structural ___ and about 80 different _____________ In its inactive state, it exists as

_____ subunits. There are two sites in the large subunit, for subsequent amino acids to bind to and thus, be close

enough to each other for the formation of a _____ bond. The ribosome also acts as a catalyst (23S rRNA in

bacteria is the enzyme _______) for the formation of peptide bond.

B. A translational unit in _______ is the sequence of RNA that is flanked by the start codon (AUG) and the stop

codon and codes for a polypeptide. An mRNA also has some additional sequences that are not translated and are

referred as untranslated regions (UTR). The UTRs are present at both 5'-end (before start codon) and at 3*-end

(after stop codon). They are required for efficient _______ process.

Options: