🔍
🏠
Khan Academy (English - US curriculum)
🎲
Khan Academy (English - US curriculum)
Science & Engineering
AP®︎ Biology
Gene expression and regulation
DNA and RNA structure
DNA and RNA structure
DNA and RNA structure
Test your knowledge of DNA and RNA structure!
License: Special Permissions by Khan Academy
Loading
Question: {{ questionIndex+1 }} / {{ maxQuestionIndex }}
{{ message }}
Take Hint
No more hints available
Check
Next Question
Kbutton if scratchpad
KButton else