I keep getting “Semi-conservative replication” questions wrong in Molecular Basis of Inheritance. What's the trap?
thinking both strands of the daughter DNA are brand new.
The usual trap: thinking both strands of the daughter DNA are brand new. How to avoid it: 'semi' — half old, half new in each copy (Meselson–Stahl). Go back to the definition — each new DNA molecule keeps one original strand and one newly made strand.
Key point
Semi-conservative replication
Common mistake
thinking both strands of the daughter DNA are brand new.
Memory tip
'semi' — half old, half new in each copy (Meselson–Stahl).
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