Identify DNA
Free printable Grade 7 science worksheet for "Identify DNA" — practice genetics and biotechnology. No-prep, print or assign online.
Middle school students learn to identify the structure, components, and function of DNA — including the double helix, nucleotides, and base-pairing rules — in this genetics and biotechnology worksheet. Teachers can use it during a heredity or genetics unit to give students a clear conceptual anchor before exploring replication, transcription, and genetic engineering. Understanding DNA is the foundation of modern biology, medicine, and forensic science.
Learning objectives
- Identify the components of DNA, including nucleotides, bases, sugar, and phosphate groups
- Describe the double helix structure and the base-pairing rules (A-T, G-C)
- Explain the role of DNA in storing and transmitting genetic information
Answer Key
How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Identify DNA” worksheet free?
Yes. “Identify DNA” is a free printable Science worksheet. Sign in with Google or email to download the PDF instantly.
What grade or age is this Science worksheet for?
It's designed for Middle School (ages 11–14), covering Genetics and biotechnology.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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