DNA replication and transcription: An innovative teaching strategy

Area of Science:

• Genetics Education
• Molecular Biology Pedagogy

Background:

• First-year genetics students struggle with higher-order thinking skills and complex molecular processes like DNA replication and transcription.
• Traditional teaching methods relying on rote learning are insufficient for developing critical thinking in genetics.

Purpose of the Study:

• To develop and evaluate an innovative tutorial strategy for teaching DNA replication and transcription to first-year genetics students.
• To improve student understanding, recall, and confidence in molecular genetics concepts.

Main Methods:

• A tutorial was designed where students visually demonstrated DNA replication using line drawings, progressing to transcription.
• The tutorial was implemented in small groups (≤40 students) with tutor guidance to encourage active participation.

Main Results:

• Overall class performance in genetics improved by an average of 15% over two years.
• Students showed enhanced retention of concepts from the first to the second year.
• Student surveys indicated the tutorial aided in organizing thoughts, visualizing processes, and building confidence.

Conclusions:

• Visual, active-learning tutorials can effectively address challenges in teaching complex molecular processes like DNA replication and transcription.
• This pedagogical approach significantly improves both immediate performance and long-term retention in genetics education.
• The strategy fosters deeper conceptual understanding and boosts student confidence in tackling challenging biological concepts.