The introns are removed from the mRNA by the action of a(n)
A)polymerase.
B)gyrase.
C)spliceosome.
D)ligase.

Question

Quizplus · Accepted Answer

Introns are removed from pre-mRNA by a spliceosome, a large complex of proteins and RNA molecules that recognizes specific nucleotide sequences at the intron-exon boundaries and catalyzes the removal of introns and ligation of exons to form mature mRNA. Polymerase is responsible for synthesizing the RNA strand from DNA. Gyrases are enzymes involved in DNA replication and supercoiling. Ligase is responsible for joining two DNA strands together.

The Introns Are Removed from the MRNA by the Action