AP Biology Quiz
20 questions · no time limit
0:00
GENE EXPRESSION AND REGULATION
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
A researcher mutates the 5' splice site of an intron in a eukaryotic gene but leaves all exon sequences unchanged. Nuclear RNA from the mutant cell includes the intron sequence, and cytoplasmic RNA contains a longer transcript than in wild type. Sequencing shows the intron remains between the same two exons in the cytoplasmic RNA. The amount of transcription initiation measured at the promoter is unchanged. Which explanation best accounts for the longer cytoplasmic RNA in the mutant?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCDE
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end