During splicing, which molecular component of the spliceosome catalyzes the excision reaction? a) proteinb) dnac) rnad) lipide) sugar

C) RNA

Explanation:

Spliceosome is a complex machinery that performs splicing (removal of the introns from the primary mRNA transcript) and alternative splicing (re-combination of different exons which increases genetic diversity). Spliceosome is composed of small nuclear RNAs (five of them) and proteins that together make snRNPs-small nuclear ribonucleo proteins.

Spliceosome is a ribozyme, meaning that RNAs inside are capable of catalyzing reactions. Catalyzed reactions by spliceosome are the removal of introns, and the ligation of the exons.

the bullets go in this order.

4, 1, 3, 5, 2

vodka and hennesy

explanation: