We offer genetics image gallery to assist you in locating graphics for use in your educational pursuits. The images below were either created by Clinical Tools, Inc. (CTI) or adapted from images in the public domain. As such, it is our belief that these images can be used freely for educational purposes. However,it is your responsibility to review the policies of those institutions that developed the provided graphics. Any use of these materials should be given appropriate acknowledgement. Most images have a credit line included on the graphic. The source appears below each thumbnail in parentheses. Non-CTI source sites can be accessed directly by clicking on the site links below.
Images
Contact the owner of the copyright for permissions, not Clinical Tools. It's your job to look at the image and determine if Clinical Tools is the copyright owner or someone else.
Images are available in the following categories:
- Molecular Genetics (Nucleic Acids, Gene Expression, DNA Replication)
- Cellular Structures
- Cell Physiology (Cell Cycle, Cell Death)
- Cytogenetics (Cytogenetic Analysis, Chromosome Aberrations)
- Inheritance Patterns (Autosomal Dominant, Autosomal Recessive, X-Linked Dominant, X-Linked Recessive, Extrachromosomal)
- Genetic Variation (Mutations, Polymorphisms)
- Protein (Amino Acids, Peptides, Proteins, Protein Conformation)
- Neoplasms (Neoplastic Processes, Neoplastic Syndromes)
- Other
- Clinical Tools, Inc. | Images marked copyrightwork by Clinical Tools, Inc. are licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.

You don't have contact us to ask about using them, but it is nice to tell us if you do. - (HGP) Department of Energy, Human Genome Project: Image Gallery | copyright statement
- (NCBI) National Center for Biotechnology Information: A Science Primer | copyright statement
- (NCI) National Cancer Institute: Visuals Online | copyright statement
- (NHGRI) National Human Genome Research Institute: Talking Glossary of Genetic Terms (original images are embedded within definitions) | copyright statement
- (NLM) US National Library of Medicine, Genetics Home Reference: Table of Illustrations | copyright statement
The Medline Plus Medical Encyclopedia offers many nice images (particularly of normal and abnormal anatomy). These images are not in the public domain, so they can not be displayed here. However, you can search for images below (search results will appear in a new window). It may be useful to include the term "image" in your search to narrow the findings (e.g., Simian crease image, club foot image). Note that the Medical Encyclopedia is only one section of the results that will be returned. | copyright statement
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Genetic Structures
Cell to Chromosome (NHGRI) view large image |
Cell to Base Pairs (NHGRI) view large image |
Cell to Base Pairs (highlighted) (NHGRI) view large image |
Chromosome and Gene (NLM) view large image |
DNA Coiling (NLM) view large image |
Chromosome to Protein (HGP) view large image |
Chromosome to Protein With Chromosome Highlighted (HGP) view large image |
Chromosome to Protein With Gene Highlighted (HGP) view large image |
Chromosome to Protein With Protein Highlighted (HGP) view large image |
Nucleic Acids
DNA (NHGRI) view large image |
DNA with Base Pair Details (NHGRI) view large image |
Nucleotides in a Sequence (NHGRI) view large image |
Nucleotides (Both Sides of Double Helix) (NHGRI) view large image |
Base Pair Details (NHGRI) view large image |
DNA With Nucleotide Structure (NHGRI) view large image |
DNA and RNA With Nucleotide Structure (NHGRI) view large image |
DNA and RNA With Nucleotide Structure reversed (NHGRI) view large image |
mRNA With Codons (NHGRI) view large image |
DNA Replication
DNA Replication (NHGRI) view large image |
DNA Replication Fork (NCBI) view large image |
Replication (CTI) view large image |
Gene Expression
Gene Elements (CTI) view large image |
Gene Elements (CTI) view large image |
Gene Structure, Brief Labels (CTI) view large image |
Gene Structure, Comprehensive Labels (CTI) view large image |
Transcription and Translation in Cell (With Labels) (NHGRI) view large image |
Transcription and Translation in Cell (NHGRI) view large image |
Transcription and Translation in Cell (tRNA Highlighted) (NHGRI) view large image |
Transcription and Translation in Cell (mRNA Highlighted) (NHGRI) view large image |
Transcription and Translation in Cell (rRNA Highlighted) (NHGRI) view large image |
Transcription/Translation (NLM) view large image |
Transcription (NHGRI) view large image |
Translation (NHGRI) view large image |
Codon Table (CTI) view large image |
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Cellular Structures
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Cell (Condensed Chromes) (NHGRI) view large image |
Cell (Decondensed Chromes) (NHGRI) view large image |
Cytoplasm (NLM) view large image |
Endoplasmic Reticulum (NLM) view large image |
Golgi Apparatus (NLM) view large image |
Lysosomes and Peroxisomes (NLM) view large image |
Plasma Membrane (NLM) view large image |
Mitochondria (NLM) view large image |
Cell Nucleus (NLM) view large image |
Cell Ribosomes (NLM) view large image |
Cell Physiology
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Cell Cycle
Cell Cycle (CTI) view large image |
Mitosis (CTI) view large image |
Mitosis and Meiosis (NLM) view large image |
Mitosis vs. Meiosis (CTI) view large image |
Meiosis 1 in Females (CTI) view large image |
Meiosis 2 in Females (CTI) view large image |
Meiosis 1 in Males (CTI) view large image |
Meiosis 2 in Males (CTI) view large image |
Normal Fertilization (CTI) view large image |
Trisomy Rescue (CTI) view large image |
Cell Death
Final Stage of Apoptosis (NLM) view large image |
Apoptosis (NLM) view large image |
Cytogenetics
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Cytogenetic Analysis
Karyotype Drawing (NLM) view large image |
Normal Female Karyotype (46,XX) (CTI) view large image |
Normal Male Karyotype (46,XY) (CTI) view large image |
Chromosome Structure (CTI) view large image |
Idiograms of All Chromosomes (CTI) view large image |
Chromosome Aberrations
Aneuploidy
Trisomy 13 Karyyotype (47,XX,+13) (CTI) view large image |
Trisomy 18 Karyotype (47,XX,+18) (CTI) view large image |
Trisomy 21 Karyotype (47,XX,+21) (CTI) view large image |
Klinefelter Syndrome Karyotype (47,XXY) (CTI) view large image |
47,XYY Karyotype (CTI) view large image |
Turner Syndrome Karyotype (45,X) (CTI) view large image |
Nondisjunction [C23.550.210.645]
Trisomy Fertilization (CTI) view large image |
Monosomy Fertilization (CTI) view large image |
Structural
Deletion (Chromosome 5) (CTI) view large image |
Duplication (Chromosome 10) (CTI) view large image |
Insertion (Chromosomes 9 and 17) (CTI) view large image |
Inversion (Chromosome Y) (CTI) view large image |
Robertsonian Translocation (Chromosomes 13 and 14) (CTI) view large image |
Reciprocal Translocation (Chromosomes 4 and 8) (CTI) view large image |
Isochrome (Chromosome X) (CTI) view large image |
Complex Rearrangement (Chromosomes 1, 4, and 16) (CTI) view large image |
Duplication (NLM) view large image |
Mosaicism
Chromosomal Mosaicism (CTI) view large image |
Embryonic Mosaicism (CTI) view large image |
Germline Mosaicism (CTI) view large image |
Mosaicism (CTI) view large image |
Inheritance Patterns [G13.420.325]
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Autosomal Dominant [G13.420.320]
Autosomal Dominant Inheritance (CTI) view large image |
Autosomal Dominant Pedigree (CTI) view large image |
Autosomal Dominant (Affected Father) (NLM) view large image |
Autosomal Dominant Punnett Square (Aa x aa) (CTI) view large image |
Autosomal Dominant Punnett Square (Aa x Aa) (CTI) view large image |
Autosomal Dominant Punnett Square (AA x aa) (CTI) view large image |
Autosomal Recessive [G13.420.325]
Autosomal Recessive Inheritance (CTI) view large image |
Autosomal Recessive Pedigree (CTI) view large image |
Autosomal Recessive Punnett Square (Aa x Aa) (CTI) view large image |
Autosomal Recessive Punnett square (aa x Aa) (CTI) view large image |
Autosomal Recessive Punnett Square (aa x AA) (CTI) view large image |
Autosomal Recessive Punnett Square (Aa x AA) (CTI) view large image |
X-Linked Dominant
X Linked Dominant Inheritance (CTI) view large image |
X-Linked Dominant Pedigree (CTI) view large image |
X-Linked Dominant (Affected Father) (NLM) view large image |
X-Linked Dominant (Affected Mother) (NLM) view large image |
X-Linked Dominant Punnett Square (Aa x aY) (CTI) view large image |
X-Linked Dominant Punnett Square (aa x AY) (CTI) view large image |
X-Linked Dominant Punnett Square (Aa x AY) (CTI) view large image |
X-Linked Recessive
X-Linked Recessive Inheritance (CTI) view large image |
X-Linked Recessive Pedigree (CTI) view large image |
X-Linked Recessive Punnett Square (Aa x AY) (CTI) view large image |
X-Linked Recessive Punnett Square (AA x aY) (CTI) view large image |
X-Linked Recessive Punnett Square (Aa x aY) (CTI) view large image |
Extrachromosomal Inheritance [G13.420.275]
Mitochondrial DNA (CTI) view large image |
Mitochondrial Inheritance, Mother Affected (CTI) view large image |
Mitochondrial Inheritance, Father Affected (CTI) view large image |
Mitochondrial (Affected Mother/Afftect Father) (NLM) view large image |
Mitochondrial Heteroplasmy Pedigree (CTI) view large image |
Mitochondria Homoplasmy Pedigree (CTI) view large image |
Multifactorial Inheritance [G13.420.590]
Multifactorial Pedigree (CTI) view large image |
Threshold Bell Curve Diagram (CTI) view large image |
Threshold Bell Curve Mean (CTI) view large image |
Threshold Bell Curve Males (CTI) view large image |
Threshold Bell Curve Females (CTI) view large image |
Genetic Techniques [E05.393]
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Pedigree [E05.393.673]
Family Puzzle Pieces (CTI) view large image |
Pedigree Symbols (CTI) view large image |
Pedigree Pregnancy Symbols (CTI) view large image |
Pedigree Symbols Example Diagram (CTI) view large image |
Siblings/Cousins Diagram (CTI) view large image |
Siblings and Half-Siblings (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Sonya Pedigree (CTI) view large image |
Connie's Pedigree (With Just Ben) (CTI) view large image |
Connie's Pedigree (New Pregnancy) (CTI) view large image |
Connie's Pedigree (CTI) view large image |
Connie's Pedigree With First-Degree Relatives Highlighted (CTI) view large image |
Genetic Variation
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Mutation
Deletion Mutation (US National Library of Medicine) view large image |
Insertion Mutation (NLM) view large image |
Missense Mutation (NLM) view large image |
Nonsense Mutation (NLM) view large image |
Frameshift Mutation (NLM) view large image |
Repeat Expansion Mutation (NLM) view large image |
Trinucleotide Repeats (CTI) view large image |
Imprinted Gene (CTI) view large image |
Prader Willi Syndrome (CTI) view large image |
Imprinted Loci (CTI) view large image |
Polymorphism
Hemoglobin, Beta Gene Mutations (CTI) view large image |
Protein
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Amino Acids, Peptides, and Proteins
Ferritin (NLM) view large image |
Actin (NLM) view large image |
Immunoglobulin G (NLM) view large image |
Growth Hormone (NLM) view large image |
Phenylalanine Hydroxylase (NLM) view large image |
Protein Conformation
Protein Structure (NHGRI) view large image |
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Neoplastic Processes
Leading Sites of New Cancer Cases Male and Female view large image |
Leading Sites of New Cancer Cases (CTI) view large image |
Leading Sites of Cancer Deaths (CTI) view large image |
Genetic Mutation and Cancer Development (NLM) view large image |
Neoplastic Syndromes
Breast Cancer Etiology (CTI) view large image |
Ovarian Cancer Etiology (CTI) view large image |
Chromosome 13 Shows BRCA2 Gene (CTI) view large image |
Chromosome 17 Shows BRCA1 Gene (CTI) view large image |
CRC Pie Chart view large image |
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Gene Therapy [E02.095.301]
Gene Therapy Using an Adenovirus Vector (NLM) view large image |
Other
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