DNA and Genetics
in Leaving Cert Biology Ordinary Level Past Papers
DNA and Genetics appears in 60% of SEC Leaving Cert Biology Ordinary Levelpapers analysed (2016–2025) — that's 6 out of 10 papers. This topic has appeared in most recent papers. Treat it as near-guaranteed.
Expert Analysis for 2026
“As a high-priority topic appearing in 60% of papers, DNA and Genetics is a high-yield area for the Leaving Cert Biology Ordinary Level exam. Students aiming for top grades should prioritize mastering the fundamental concepts here, as it appears in 6 out of 10 recent cycles.”
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