Introns are most often found and removed from mRNA in which domain of life? A. Archaea B. Bacteria C. Eukaryotes D. Al die bogenoemde / All of the above

The genes of which of these organisms do NOT contain introns? Saccharomyces cerevisiae (Yeast) C. elegans Escherichia coli (E. coli) Mus musculus Drosophila melanogaster

The removal of introns is accomplished by a large complex made of proteins and small RNAs called _____.Group of answer choicesaminoacyl-tRNA synthetaseRNA polymerasea polyribosomea ribozymea spliceosomeNext

A large complex made up of proteins and RNA molecules that removes introns from mRNA.Group of answer choicestranscription initiation complexspliceosomeribozymesRNA polymerasepolyribosomeaminoacyl-tRNA synthetasetranscription factor

What is the process used to remove introns from eukaryotic genes?Group of answer choicessplicingmodificationcellular nucleasesmethylationnone of the above

12. DNA sequences found in introns providea. amino acid sequence information.b. regulatory information.c. no known useful information.d. structure for the gene.e. alternative DNA splicing possibilities.