Question

In group I and group II introns, the RNAs act as_________, which means they are RNAs with enzymatic activity.

Answer 1

In group I and group II introns, the RNAs act as ribozymes, which means they are RNAs with enzymatic activity. They are self-splicing and do not require snRNPs or other proteins for splicing.

Step-by-step explanation:

In group I and group II introns, the RNAs act as ribozymes, which means they are RNAs with enzymatic activity. Group I introns and Group II introns are self-splicing and do not require snRNPs or other proteins for splicing. They fold into secondary stem-loop structures that position catalytic nucleotides at splice sites, allowing them to excise themselves and re-ligate exons.