Biology Question on the molecular basis of inheritance

Question

Formation of polysome does not require

Answer 1

Solution

Small nuclear RNA (snRNA) is the name used to refer to a number of small RNA molecules found in the nucleus. These RNA molecules are important in a number of processes including RNA splicing (removal of the introns from hnRNA) and maintenance of the telomeres or chromosome ends. Polysomes are aggregates of ribosomes bound together on a mRNA molecule. They are formed during active protein synthesis, as during protein synthesis (translation), ribosomes (containing rRNA), mRNA and tRNA are required, thus formation of polysomes (or polyribosomes) also requires the presence of these three types of RNAs but not snRNA.