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Advanced Genetic Testing in the UK

At Jeen, we believe in using the right tool for the job. For most people, our targeted Gene Panels (such as our Cancer Screening or Carrier Screening) are the most effective way to get clear, actionable answers.However, some health questions require a deeper look.

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Medically reviewed by Ailidh Watson, Lead Genetic Counsellor·Last reviewed January 2026

What is Advanced Genetic Testing?

For individuals with undiagnosed conditions, complex family histories, or those seeking the most comprehensive proactive screening available, we offer Advanced Genetic Testing. These tests, ranging from Whole Exome to Whole Genome Sequencing, analyse vast amounts of DNA to find answers that standard tests might miss.

When you book with Jeen, you aren't just buying a kit; you are gaining a partner in your healthcare. During your consultation, our Genetic Counsellors, will review your personal and family history. If they believe a targeted panel is sufficient, they will tell you. If they suspect your situation requires the depth of WES or WGS, they will guide you through that process to ensure you understand both the potential and the limitations.

How it works

Trusted specialists

Spital Clinic - Top rated Primary Care Clinic in London on Doctify
Chat with our Genetic Counsellor about your advanced genetic testing options, receive your at-home DNA kit, send it back, and get your results.

1

Speak to our expert geneticists, design your advanced personalised test

2

Get your test through the mail, and organise basic blood test

3

Get your detailed report and recommendations

1

Online Genetic Counselling

Speak to our expert geneticists, design your advanced personalised test

2

Bloods Test

Get your test through the mail, and organise basic blood test

3

Report & Recommendations

Get your detailed report and recommendations

Advanced Testing

We offer three specialist sessions depending on the type of testing you're considering:

Targeted NGS Panel

Focuses on specific lists of genes to answer precise health questions.

What's included:

Analysis of defined gene list
Fast turnaround (2-3 weeks)
Pre/post-test genetic counselling
Upon request
Discover NGS options

Whole Exome Sequencing

Screens all protein-coding genes for broad health insights & rare conditions.

What's included:

Sequencing of ~20,000 genes
Moderate turnaround (3-4 weeks)
Pre/post-test genetic counselling
Upon request
Discover WES

Whole Genome Sequencing

The most comprehensive test, reading the vast majority of your DNA.

What's included:

Analysis of 3 billion base pairs
Longer turnaround (4-8 weeks)
Pre/post-test genetic counselling
from
£295
Discover WGS

Karyotype Analysis

Are you facing unexplained fertility issues or recurrent pregnancy loss? Karyotype analysis examines your chromosomes to identify structural changes that could affect your health or future family planning.

Visualises your chromosomes: Checks for missing, extra, or rearranged chromosomes (e.g., translocations).
Expert support included: Every test includes a session with our reproductive health specialists to explain the results.
Flexible options: Available for individuals or couples, with standard or express turnaround times.
Book from £365

Another 23andMe?

At Jeen, we focus on health, not hair colour. Our genetic testing uses 50x sequencing depth (NGS) for greater accuracy and confidence in detecting inherited conditions.

How DNA Sequencing Works

DNA is broken into small fragments, sequenced, and computationally assemble into the full genome.

What is Sequencing Depth?

Sequencing depth is how many times your DNA is read. Higher depth = more accurate results, lower depth = risk of missed mutations.

Genome Size Matters!

Larger genomes (like humans) need more sequencing reads. That’s why high-depth testing matters-it ensures nothing is missed.

Why Jeen?

Not all genetic tests are created equal. At Jeen, we use 50x sequencing coverage, which means each section of your DNA is read around 50 times. Here’s why it makes a difference:

Bigger genome → more data needed

Higher depth → better accuracy

Balance cost vs. detail!

What Now?

Have questions? We’re here to help. Genetic testing can feel overwhelming, but it doesn’t have to be. Our genetic counsellors are here to walk you through your options, explain the science in plain English, and help you decide if testing is right for you.

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Sources & references

The statistics and clinical claims on this page are supported by the following authoritative sources.

  • NHGRI

Explore more

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