Skip to main content

KiwiBee printable

Classify genes

Free printable Grade 6 science worksheet for "Classify genes" — practice heredity. No-prep, print or assign online.

Classify genes — free printable Middle School Science worksheetOpen in KiwiBee to download

Middle school Life Science students classify genes in this Heredity worksheet, exploring the distinction between dominant and recessive alleles and how genes are expressed as traits. Teachers can use it as a structured introduction before students work with Punnett squares, or as a vocabulary-building review that prepares them to analyze inheritance patterns. A clear understanding of gene classification underpins all work on heredity and genetic variation.

Science
Life Science
Middle School
Worksheets
Ages 11–14
hard

Learning objectives

  • Classify genes as dominant or recessive and explain the difference
  • Describe how dominant and recessive alleles interact to determine an organism's traits
  • Use gene classification vocabulary accurately in explanations of heredity

Answer Key

Answer key for Classify genes — free printable Science worksheet

How to use this worksheet

  1. Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
  2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

Likes & comments

See what other teachers think and share a helpful note.

Loading likes and comments…

Create more worksheets in our Worksheet Studio

Generate fresh worksheets for any grade, topic, and language — free.

Open the Worksheet Studio

Related worksheets

Identify variation

Identify variation

Worksheets
hard
Ages 11–14
Classify inherited traits

Classify inherited traits

Worksheets
hard
Ages 11–14
Classify Punnett squares

Classify Punnett squares

Worksheets
hard
Ages 11–14
Classify variation

Classify variation

Worksheets
hard
Ages 11–14
Compare observations of genes and describe the pattern you notice

Compare observations of genes and describe the pattern you notice

Worksheets
hard
Ages 11–14
Compare observations of inherited traits and describe the pattern you notice

Compare observations of inherited traits and describe the pattern you notice

Worksheets
hard
Ages 11–14
Compare observations of Punnett squares and describe the pattern you notice

Compare observations of Punnett squares and describe the pattern you notice

Worksheets
hard
Ages 11–14
Identify genes

Identify genes

Worksheets
hard
Ages 11–14