Tag: DNA
17 Results
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Nonsense mutation
Here's the lowdown on a unique process of cellular translation.
September 12, 2018 -
Promising a vast scope
The subject of molecular biosciences is full of novel research prospects in areas of modern medicine, solar and biofuel production.
August 28, 2018 -
Discarded napkin solves murder mystery in US after 32 years
Pierce County prosecutors on June 22 charged Gary Charles Hartman, 66, with first-degree murder and rape in the 1986 death of a 12-year-old girl
June 23, 2018 -
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DNA and the Indian system
The admissibility of DNA evidence in courts remains a grey area, writes Ashok Bhan.
June 7, 2018 -
Splitting and pairing up
Breaking the rule of two is found to make genetics go berserk.
June 6, 2018 -
Inside the genome
Here’s a look at the process of DNA renaturation that led to the discovery of repeated sequences in DNA.
May 16, 2018 -
DNA data banks to be set up at national, state level to store DNA profiles
DNA data banks will be set up at the national and state level to store profiles, and those who leak the information stored in such facilities will be punished with a jail term of up to three years, according to a draft bill on DNA technology being finalised by the Law Ministry.
May 13, 2018 -
Speed reading from storage
Deoxyribonucleic acid, the molecular code found in the nuclei of living cells, is the most compact and hardy data storage system we have encountered. The nucleus of microscopic cells contains a giant molecule, billions of units long and compactly folded, with the code for all the proteins that the cells of an organism would produce, …
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February 20, 2018 -
Storing vital information
Bacteriophages are viruses that infect bacteria. They have been objects of scientific study since the 1930s, and much of our early understanding of molecular genetics came from experiments involving these viruses. One of the most thoroughly studied of the phages that infect the bacterium Escherichia coli is bacteriophage T2. During infection, this virus attaches to …
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February 13, 2018 -
Taking organs from animals
Scientists are working on transplanting entire hearts, liver, kidneys, pancreas and lungs from animals to humans. The increasing demand for organs, tissues, and cells, and the dearth of available human organs, have focused scientific interest in taking organs from animals. The term for the transplanting of organs from one species to another is called xenotransplantation …
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January 21, 2018 -
Plugging escape routes
Pathogens have a tendency to develop resistance. The usual pathway is through chance mutations that have inborn resistance. These mutants, though in small numbers, survive the attack by drugs and the body’s mechanisms against the original organisms, and they thrive, because the drugs reduce their competitors for resources. Mutants hence multiply and grow into a …
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January 17, 2018 -
Editing genes like alphabets
The journal, Nature, has selected David R Liu, a researcher at the Massachusetts Institute of Technology, Boston, as the first of the 10 people who mattered in 2017. Liu has “developed gene-editing tools that are new to nature, and that could one day save lives”, says the write-up in the journal. In October 2017, the …
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January 3, 2018 -
Indian cricketers undergoing DNA/genetic fitness test
The test helps a sportsman improve his speed, in fat burning, endurance, recovery time, and muscle building.
November 12, 2017 -
With myriad functions
Membrane proteins have not yielded as well as other proteins to biochemical techniques, mainly because of the problems involved in isolating and purifying hydrophobic proteins in physiologically active form. Procedures such as SDS-polyacrylamide electrophoresis and hydropathy analysis have certainly been useful, as have labeling techniques involving radioisotopes or fluorescent antibodies. In the last three decades, …
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October 25, 2017 -
Six genes linked to preterm birth identified
US researchers have found six gene variants that have the potential to influence whether a woman is likely to have a preterm baby, a finding that could lead to new ways to prevent preterm birth and its consequences — the leading cause of death among children under age 5 worldwide. The findings showed that mutations …
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September 7, 2017 -
Discovery of simple method to extract DNA claimed
Iraqi scientists at Al-Qasim Green University claim to have found a “universal, rapid and inexpensive” method for the isolation of DNA (deoxyribonucleic acid) from the blood of a wide range of species for genomic studies. Currently there is no common procedure for extracting DNA from the blood of both mammals and birds since each species …
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August 18, 2017