Which of the Following Statements About Group I and Group

question 74

Multiple Choice

Which of the following statements about group I and group II introns is NOT true?

• A) Both group I and II introns form elaborate and characteristic secondary structures with loops.
• B) The splicing mechanism of group II introns is similar to that of spliceosome-mediated nuclear pre-mRNA splicing.
• C) The length of group I and group II introns is much longer than the exons within the structures.
• D) Group I and group II introns are exclusively found in mitochondrial and chloroplast encoded genes.
• E) Both group I and group II introns are both found in bacterial genes.