A little precision. A perfect pair. Bring the double helix to life.
Complete the strand. Repair the errors.See what you can build in 150 seconds.
You have 150 seconds of active play. DNA bases always pair A with T and G with C.
Use the base buttons, A / T / G / C, or 1 / 2 / 3 / 4. Arrow keys select a repair site. Space pauses.
Correct repairs earn 100 points plus a streak bonus of up to 100. Completing a strand earns 200 more. A mistake costs 25 points and resets your streak. An unfinished strand passing the scanner costs 50 points and resets your streak. Your score never falls below zero.
The scanner allows 16, 13, then 10 seconds per strand. The final stage contains more repair sites. Pausing or opening these notes stops both timers.
An educational model: the molecular view and damage repair are simplified for play. Natural DNA repair involves many enzymes.
Your timers are paused. The strand will be right here.