DNA Sequencing Has Revolutionized the Field with Whole-Genome Sequencing

Anurag Sharma
Anurag Sharma

Updated · Oct 12, 2023

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According to DNA statistics, or forensic DNA statistics is a field of study that utilizes statistical methods to analyze and interpret evidence in various applications, particularly in forensic science and genetic investigations. It involves applying statistical techniques to determine the significance and strength of the evidence provided by profiles.

Editor’s Choice

  • DNA profiles in the system and CODIS has produced leads that have assisted in almost 170,000 investigations.
  • 98% of human DNA is considered noncoding and the scientific community has only recently begun to identify its functions.
  • 22% of jurors expected evidence to be presented in every criminal case.
  • All humans share 99.9% identical genetic makeup.
  • DNA has an indefinite half-life, yet humans only share about 50% of it with bananas.
  • Within every cell in a person’s body lies 6 feet 5 inches of DNA strands.
  • Human consists of 23 pairs of chromosomes that are tightly packed into 23 pairs.
  • Humans share 98% of their genetic material with other primates such as chimpanzees and bonobos; on average siblings tend to share approximately 50%.

Fascinating DNA Statistics

  • The human genome contains about 3 billion base pairs of DNA

Every human cell contains 23 pairs of chromosomes for a total of 46 chromosomes. Additionally, each chromosome carries hundreds to thousands of genes that provide instructions for making proteins that play vital roles in our bodies.

  • All humans share 99.9% identical genetic makeup

DNA testing statistics demonstrate that only 0.01% of the 3 billion base pairs in our genome are unique to each person; this 0.01% accounts for all differences observed within human populations.

  • DNA has a half-life of 521 years.

Under certain conditions, this could even take longer. For instance, burial temperatures of 13.1degC could significantly slow the process down by almost 400 times.

  • Humans share about 50% of their DNA with bananas.

Humans share half their DNA with bananas – quite surprising considering our differences! Humans also share 85% DNA with mice and 61% with fruit flies.

  • The longest chromosomes contain approximately 250 million nucleotide pairs

Chromosomes contain long strands. Although their lengths can differ, each contains millions of base pairs, the more pairs it contains, the longer its strand will be.

  • Human DNA can be divided into 23 pairs of chromosomes.

The first 22 pairs are known as autosomes; while sex chromosomes make the distinction between females (XX) and males (XY). Sex chromosomes determine the gender of children. Both parents provide at least one X chromosome; fathers can provide either one of two possible options (X or Y).

Scientists have studied facts that reveal which chromosomes possess more nucleotide pairs and which ones contain the fewest. According to their findings, Chromosome 21 is the shortest while Chromosome 1 holds around 48 million base pairs respectively.

Interesting Facts About DNA

  • Human beings share 99.7% of their DNA with chimpanzees and bonobos

DNA proves that humans bonobos and chimps are our closest living relatives; all three species descended from an ancestor that lived six or seven million years ago.

  • Genes make up only 3% of our DNA.

Here’s an interesting and (perhaps alarming) fact about DNA: only a very small portion is actual genes. No one knows for certain what the remaining 97% do; scientists speculate that they could regulate transcription and translation processes.

  • Around 8% of our DNA comes from ancient viruses

Studies have revealed that each human contains some from retroviruses that we’ve collected throughout human evolution. Some find the concept of structure frightening, yet such fear is unwarranted – these viral remnants tend to be harmless in most instances. Only rare individuals are at risk of inheriting herpesvirus-6 DNA fragments that could cause roseola to strike early on in childhood.

  • One gram of DNA holds around 455 Exabyte of information

As we were perusing DNA trivia, we came across this amazing fact: One Exabyte can store enough text for approximately 320 billion King James Bible editions.

More Facts

  • On average, siblings share approximately 50% of the same DNA

Most people would assume that siblings share nearly all of their DNA, but that does not appear to be the case. On average, siblings only share half of each other’s while half-siblings share 25%. On the other hand, identical twins share all their genetic material. Siblings often share a family tree; however, their genetic codes could vary significantly from each other.

  • Every day, DNA suffers damage in the range of 1,000-1,000,000 per cell due to environmental exposure

Stats and facts about genetics and heredity have demonstrated that neither replicates perfectly nor stays unchanged over time. Minute damage accumulates over time and deteriorates DNA.

But few realize how much damage DNA endures. Every day, every cell suffers anywhere between 1,000 and 1,000,000 molecular lesions.

  • Less than 10% of DNA tests are wrong

Modern DNA testing techniques offer only very small chances of giving inaccurate information, with continued usage over time, the test becomes steadily more accurate.

  • Progeria affects one out of 200,000 new-borns born in the US

Progeria, more commonly referred to as Hutchinson-Gilford syndrome, results from mutations of the lamin A (LMNA) gene that accelerate aging. While no cure exists, new technologies provide better ways of diagnosing it early.

Advancements in DNA Sequencing

A wide range of genes can now be tested on a single diagnostic platform due to the widespread use of Whole-genome Sequencing and Next-generation Sequencing, expanding the application of DNA sequencing in clinical diagnosis.

  • In 2022, the Global DNA Sequencing Market was valued at US$ 10.1 billion. Between 2023 and 2032, this market is estimated to register the highest CAGR of 15.3%.
  • The National Human Genome Research Institute estimated that the procedure would cost approximately $300 million together. 
  • The Human Genome Project (HGP), an international research endeavor, completed the first draft of the human genome in 2001.
  • The human genome consists of approximately 3 billion base pairs, which encode around 20,000-25,000 genes.
  • The HGP cost an estimated $2.7 billion and took 13 years to complete.
  • The Human Genome Project’s first draft cost around $2.7 billion, but by 2008, the price dropped to $10 million for a complete genome sequence.
  • Today, sequencing a human genome can cost around $1,000 or even less, depending on the technology and service provider.
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Anurag Sharma

Anurag Sharma

He has been helping in business of varied scales, with key strategic decisions. He is a specialist in healthcare, medical devices, and life-science, and has accurately predicted the trends in the market. Anurag is a fervent traveller, and is passionate in exploring untouched places and locations. In his free time, he loves to introspect and plan ahead.