Genome research links DNA variation to health from inherited risk to treatment decisions, spanning conditions like cancer and other complex diseases. It uses methods such as genome-wide association studies, pharmacogenomics, and prenatal whole-genome sequencing to compare variants across people. The page also explores non-coding regions, structural variants, and copy number changes—plus how the human genome was mapped and quantified—so you can see how findings translate into medical care.
Key Takeaways
- Genome-wide association studies link 7,000 SNPs to disease risk
- Pharmacogenomics identifies 300 actionable variants for 100+ drugs
- Prenatal whole-genome sequencing detects 13% more pathogenic variants than microarrays
- The human genome contains an estimated 20,000-25,000 protein-coding genes
- Non-coding RNAs number over 20,000 in the human genome including lncRNAs and miRNAs
- Pseudogenes in humans total around 14,000, mostly processed pseudogenes
- The common single nucleotide polymorphisms (SNPs) number over 10 million in the human genome with minor allele frequency >1%
- Structural variants (SVs) affect 20-50 kb per individual, totaling 1-2% of genome difference
- Copy number variations (CNVs) cover 12% of the human genome across populations
- The human genome contains approximately 3.2 billion base pairs of DNA sequence
- The haploid human genome size is measured at 3,054,815,472 base pairs in the GRCh38.p14 assembly
- Eukaryotic genomes like humans have linear chromosomes, with 22 autosomes and 2 sex chromosomes totaling 24 unique chromosomes
- Human Genome Project officially completed in 2003 with 99% coverage at 1x depth
- The first human genome sequence cost $2.7 billion and took 13 years
- Illumina HiSeq platform enabled 100x coverage human genomes for under $1,000 by 2015
From 7,000 disease linked SNPs to 1000 Genomes scale sequencing, modern genomics is accelerating actionable insights for care.
Related reading
01 · Category
Applications And Impacts20 stats
01
Genome-wide association studies link 7,000 SNPs to disease risk
02
Pharmacogenomics identifies 300 actionable variants for 100+ drugs
03
Prenatal whole-genome sequencing detects 13% more pathogenic variants than microarrays
04
Cancer precision medicine matches therapies to mutations in 30% of advanced cases
05
Polygenic risk scores predict 10-20% lifetime risk for coronary artery disease
06
CRISPR-Cas9 gene editing corrected 80% of sickle cell mutations in stem cells
07
Non-invasive prenatal testing (NIPT) screens 99.9% of trisomy 21 cases from cell-free DNA
08
Carrier screening panels detect 85% of cystic fibrosis carriers in Caucasians
09
Whole genome sequencing reduces neonatal ICU diagnosis time from months to days in 40% cases
10
Forensic DNA phenotyping predicts eye color with 90% accuracy from SNPs
11
Genomic selection in cattle breeding increased milk yield by 100 kg/year
12
Bt corn genome editing reduced pesticide use by 37% globally
13
Human genome editing trials for HIV cure edited CCR5 in 12 patients safely
14
Ancestry DNA tests trace 80% of Ashkenazi Jewish ancestry accurately
15
Metagenomics sequenced 200,000 microbial genomes from human gut microbiome
16
AlphaFold predicted structures for 200 million protein sequences from genomes
17
Liquid biopsy ctDNA detects 87% of stage I cancers via genome sequencing
18
Gene drive mosquitoes edited genomes reduced malaria vectors by 99% in trials
19
Direct-to-consumer genetic testing reached 30 million users by 2023
20
Genome editing in rice increased yield by 20% via promoter swaps
Interpretation
Applications And Impacts Interpretation
Across Applications and Impacts, genome tools are delivering tangible clinical gains, from linking 7,000 SNPs to disease risk and matching therapies in 30% of advanced cancers to improving prenatal variant detection by 13% and editing 80% of sickle cell mutations in stem cells.
02 · Category
Gene Content24 stats
01
The human genome contains an estimated 20,000-25,000 protein-coding genes
02
Non-coding RNAs number over 20,000 in the human genome including lncRNAs and miRNAs
03
Pseudogenes in humans total around 14,000, mostly processed pseudogenes
04
The average human gene spans 27 kb with 9 exons on average
05
Histone genes in humans number about 100, clustered on chromosomes 1 and 6
06
Olfactory receptor genes total 391 functional in humans, part of 800+ gene family
07
MHC genes on chromosome 6 number over 200, highly polymorphic
08
HOX gene clusters in humans consist of 39 genes across 4 clusters
09
Immunoglobulin genes on chromosome 14 total hundreds in variable/diversity/joining segments
10
T-cell receptor genes number over 100 loci across multiple chromosomes
11
G-protein coupled receptors (GPCRs) genes total 816 in humans
12
Kinase genes number approximately 518 in the human kinome
13
Zinc finger genes exceed 700 in humans, largest transcription factor family
14
Cytochrome P450 genes total 57 functional in humans
15
Collagen genes number 28 in humans
16
The fruit fly genome encodes about 14,000 protein-coding genes
17
Arabidopsis has 27,655 protein-coding genes
18
Yeast S. cerevisiae has 6,300 genes, 5,500 protein-coding
19
E. coli has 4,300 genes, mostly protein-coding
20
Mouse genome has 22,000 protein-coding genes
21
The rice genome encodes 41,000 genes
22
Wheat genome has ~110,000 genes due to polyploidy
23
Chimpanzee genome has ~19,000 protein-coding genes
24
C. elegans has 20,400 protein-coding genes
Interpretation
Gene Content Interpretation
Gene content in the human genome is dominated by complexity beyond protein coding, with 20,000 to 25,000 protein genes paired with more than 20,000 non coding RNAs and about 14,000 pseudogenes.
03 · Category
Genetic Variation20 stats
01
The common single nucleotide polymorphisms (SNPs) number over 10 million in the human genome with minor allele frequency >1%
02
Structural variants (SVs) affect 20-50 kb per individual, totaling 1-2% of genome difference
03
Copy number variations (CNVs) cover 12% of the human genome across populations
04
The nucleotide diversity π in humans is 0.001 between any two individuals
05
African populations have 60% higher SNP density than non-Africans
06
HLA region shows highest polymorphism with over 20,000 alleles cataloged
07
Mobile element insertions vary by 1,500 events per individual genome
08
Inversions larger than 1 kb occur at 12,000-15,000 per diploid genome
09
Microsatellite repeat variations contribute to 3% of human genetic diversity
10
Somatic mutations in cancer genomes average 100-1,000 per tumor exome
11
The chimpanzee-human divergence is 1.23% at aligned sites
12
Archaic admixture from Neanderthals contributes 1-2% of non-African genomes
13
Denisovan DNA admixture up to 5% in some Oceanian populations
14
Rare variants (<0.1% MAF) constitute 86% of SNPs in human populations
15
gnomAD database catalogs 676,000 exomes with 3.1 million loss-of-function variants
16
Population bottleneck reduced human diversity to 10,000 individuals ~70,000 years ago
17
Fst genetic differentiation between continents averages 0.11
18
GWAS identified 12,000 trait-associated loci across 3,300 traits
19
Polygenic risk scores explain up to 20% heritability for height in Europeans
20
CRISPR off-target mutations occur at rates below 0.1% in edited genomes
Interpretation
Genetic Variation Interpretation
Genetic variation across humans is strikingly widespread, from over 10 million common SNPs and CNVs spanning about 12% of the genome to HLA polymorphism exceeding 20,000 alleles, while nucleotide diversity stays tightly constrained at π 0.001 between any two individuals, and African populations show 60% higher SNP density than non-Africans.
More related reading
04 · Category
Genome Size And Structure29 stats
01
The human genome contains approximately 3.2 billion base pairs of DNA sequence
02
The haploid human genome size is measured at 3,054,815,472 base pairs in the GRCh38.p14 assembly
03
Eukaryotic genomes like humans have linear chromosomes, with 22 autosomes and 2 sex chromosomes totaling 24 unique chromosomes
04
The total length of the human genome is about 6.4 billion base pairs when considering the diploid state
05
Mitochondrial DNA in humans contributes an additional 16,569 base pairs to the total genomic content
06
The largest human chromosome, chromosome 1, spans 249 million base pairs
07
Chromosome Y in humans is the smallest, with about 59 million base pairs
08
Introns make up roughly 25% of the human genome, while exons constitute about 1.5%
09
Repetitive DNA elements occupy over 50% of the human genome, including LINEs and SINEs
10
The human genome has approximately 1.5% of its sequence coding for proteins
11
Centromeric regions in the human genome total around 4-5% of the chromosomal length
12
Telomeres in human chromosomes consist of TTAGGG repeats averaging 5-15 kb in length
13
Heterochromatin comprises about 30% of the human genome, often gene-poor
14
The effective genome size after masking repeats is about 2.5 billion bp for mapping purposes
15
Human genome GC content averages 40.9% across all chromosomes
16
The genome of the fruit fly Drosophila melanogaster is 180 million base pairs
17
Arabidopsis thaliana genome size is 135 million base pairs with 5 chromosomes
18
Baker's yeast Saccharomyces cerevisiae genome is 12 million base pairs across 16 chromosomes
19
Escherichia coli K-12 genome is 4.6 million base pairs, circular chromosome
20
The mouse genome Mus musculus is 2.8 billion base pairs, highly similar to human
21
Rice Oryza sativa genome is 430 million base pairs with over 400 Mb euchromatin
22
The wheat genome Triticum aestivum is approximately 17 billion base pairs, hexaploid
23
Corn Zea mays genome size is 2.3 billion base pairs
24
The chimpanzee genome Pan troglodytes is 3.0 billion base pairs, 98.8% identical to human
25
Neanderthal genome draft size matches modern humans at ~3.1 billion bp
26
The bacterial genome of Mycobacterium tuberculosis is 4.4 million base pairs
27
Caenorhabditis elegans genome is 100 million base pairs with 6 chromosomes
28
The pufferfish Takifugu rubripes genome is 400 million base pairs, compact vertebrate genome
29
Plasmodium falciparum malaria parasite genome is 23 million base pairs
Interpretation
Genome Size And Structure Interpretation
Within the Genome Size And Structure category, humans have a detailed genomic layout where the haploid genome is 3,054,815,472 base pairs in GRCh38.p14 and the diploid genome totals about 6.4 billion base pairs, reflecting how linear 24-chromosome organization scales up to roughly twice the DNA content plus an extra 16,569 base pairs from mitochondrial DNA.
05 · Category
Sequencing Projects19 stats
01
Human Genome Project officially completed in 2003 with 99% coverage at 1x depth
02
The first human genome sequence cost $2.7 billion and took 13 years
03
Illumina HiSeq platform enabled 100x coverage human genomes for under $1,000by 2015
04
The 1000 Genomes Project sequenced 2,504 individuals from 26 populations at 6x coverage
05
UK Biobank sequenced exomes of 500,000 participants at 30x depth
06
The Cancer Genome Atlas (TCGA) generated 2.5 petabytes of genomic data from 11,000 tumors
07
Earth BioGenome Project aims to sequence all 1.8 million eukaryotic species by 2028
08
The first bacterial genome, Haemophilus influenzae, sequenced in 1995 at 1.8 Mb
09
Human ENCODE project mapped functional elements across 30% of the genome using multiple assays
10
The Neanderthal genome sequenced from three individuals at 1.3x average coverage in 2010
11
PacBio long-read sequencing achieved N50 contig size of 13 Mb for human genome CHM13 assembly
12
Oxford Nanopore MinION sequenced entire human genome in real-time at 30x coverage
13
The Telomere-to-Telomere (T2T) consortium completed the first fully gap-free human genome in 2022
14
All of Us Research Program plans to sequence 1 million diverse U.S. genomes
15
BGI sequenced the first individual human genome (YH) in 2008 using SOAP assembler
16
The rice genome fully sequenced in 2005 by Beijing Institute of Genomics at 95% coverage
17
Mouse genome sequenced by Celera and public consortium in 2002 at 7x coverage
18
The human reference GRCh38 released in 2013 incorporating 75 new assemblies
19
GTEx project sequenced RNA from 54 tissues across 948 donors
Interpretation
Sequencing Projects Interpretation
Sequencing has rapidly scaled from the Human Genome Project’s 99% coverage at 1x over 13 years costing $2.7 billion to projects like the UK Biobank’s 500,000 exomes at 30x and TCGA’s 2.5 petabytes from 11,000 tumors, showing that sequencing efforts now deliver much higher depth and far larger cohorts at dramatically lower cost and faster timelines.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Emilia Santos. (2026, February 13). Genome Statistics. Gitnux. https://gitnux.org/genome-statistics
MLA
Emilia Santos. "Genome Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/genome-statistics.
Chicago
Emilia Santos. 2026. "Genome Statistics." Gitnux. https://gitnux.org/genome-statistics.
Sources & references
44 datasets cited across this report · attribution is report-level