DNA News and Research

RSS
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people. The order, or sequence, of these bases determines the information available for building and maintaining an organism, similar to the way in which letters of the alphabet appear in a certain order to form words and sentences.

DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix. The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.

An important property of DNA is that it can replicate, or make copies of itself. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.
Asynt’s non-ducted filtration and fume cabinets to aid development of portable diagnostic devices

Asynt’s non-ducted filtration and fume cabinets to aid development of portable diagnostic devices

World's first licence for mitochondrial donation IVF may enable women to have disease-free babies

World's first licence for mitochondrial donation IVF may enable women to have disease-free babies

Linking RNA to autoimmune diseases

Linking RNA to autoimmune diseases

Genetic mutations underlying treatment resistance in NSCLC more dynamic than previously thought

Genetic mutations underlying treatment resistance in NSCLC more dynamic than previously thought

Biomarker blood test detects recurrences of lung cancer before conventional imaging methods

Biomarker blood test detects recurrences of lung cancer before conventional imaging methods

High-resolution images of protein complex performing first step in genome-replication dance captured

High-resolution images of protein complex performing first step in genome-replication dance captured

High levels of two biomarkers can predict risk for adverse cardiac events, research suggests

High levels of two biomarkers can predict risk for adverse cardiac events, research suggests

Syngene introduces easy-to-use powerful NuGenius gel imaging system

Syngene introduces easy-to-use powerful NuGenius gel imaging system

New NuGenius gel imaging system powered by Raspberry Pi computer offers accurate method to detect disease causing genes

New NuGenius gel imaging system powered by Raspberry Pi computer offers accurate method to detect disease causing genes

Syngene introduces new Dynamic Fielding feature in GeneSys image capture software

Syngene introduces new Dynamic Fielding feature in GeneSys image capture software

Syngene introduces new UV-Blue Light Converter Screens for its imaging systems

Syngene introduces new UV-Blue Light Converter Screens for its imaging systems

Researchers use Syngene’s G:BOX Chemi XRQ image analysis system in cardiac research

Researchers use Syngene’s G:BOX Chemi XRQ image analysis system in cardiac research

Northumbria University uses G:BOX Chemi XX6 multi-application imager in biomedical research

Northumbria University uses G:BOX Chemi XX6 multi-application imager in biomedical research

The Sohn Conference Foundation funds research to advance understanding of how pediatric cancer metastasizes

The Sohn Conference Foundation funds research to advance understanding of how pediatric cancer metastasizes

Scientists identify genetic clues to chronic kidney disease

Scientists identify genetic clues to chronic kidney disease

Young researchers explore impact of prolonged Zika viremia in pregnant women, fetuses and infants

Young researchers explore impact of prolonged Zika viremia in pregnant women, fetuses and infants

First physiological test opens door to early diagnosis of autism

First physiological test opens door to early diagnosis of autism

Dietary anti-cancer compound from broccoli may work by influence on long non-coding RNAs

Dietary anti-cancer compound from broccoli may work by influence on long non-coding RNAs

Research shows how Ebola viral proteins packaged in exosomes affect immune cells

Research shows how Ebola viral proteins packaged in exosomes affect immune cells

Syngene introduces new easy-to-use PXi Access multi-application imaging systems

Syngene introduces new easy-to-use PXi Access multi-application imaging systems