Molecular biology: GK, Current Affairs, Questions, Trivia and News

Kolkata becomes first city to install RT-PCR machines in India

The Kolkata Municipal Corporation (KMC) has installed first of its kind high-end reverse transcription polymerase chain reaction (RT-PCR) machines in India for quick detection of diseases such as  dengue, tuberculosis and swine flu. The machines will serve as a “third umpire” in situations when medical reports and blood tests reveal contradictory results. Its objective is ..

DNA test : 45 year old double murder solved

DNA evidence found at a 1973 crime scene has helped the investigators to identify suspect. However the suspect was long dead. Linda and Clifford Berhardt, 24 were killed years back. The investigators found that they were murdered by Linda’s co worker Caldwell, who died in 2003. The DNA evidences were compared to the genetic samples ..

Japanese-born Marine biologist Osamu Shimomura passes away

Japanese-born Marine biologist Osamu Shimomura (90), who won the 2008 Nobel Prize in chemistry, has passed away in Nagasaki, Japan on 19th October 2018. Shimomura and two American scientists shared the 2008 Nobel prize for the discovery and development of a jellyfish protein (or Green Fluorescent Protein (GFP)) that later contributed to cancer studies. He ..

Advantages and Disadvantages of Genetically Modified Crops

Genetically modified crops are plants whose DNAs are modified by the genetic engineering methods to develop favorable characteristics. There are large number of debates about the utility, efficacy, advantages and disadvantages of the genetically modified crops. Each side is putting across their views in a deterministic manner. Hence genetically modified crops are referred as double ..

China’s researchers claims to create world’s first single-chromosome yeast

Molecular biologists at the Centre for Excellence in Molecular Plant Sciences in China have claimed to create the world’s first single-chromosome yeast while not affecting the majority of its functions. If their claim is true then this breakthrough could help in furthering research related to aging and diseases in humans. They used CRISPR-Cas9 genome-editing to ..

India ranked as world’s fifth largest cultivated area under genetically modified (GM) crops

According to the Global Status of Commercialized Biotech/ GM Crops in 2017 by International Service for the Acquisition of Agri-Biotech Applications (ISAAA), India has the world’s fifth largest cultivated area under genetically modified (GM) crops. However, this entire area is under single crop – cotton. Currently, the country with highest area under transgenic crops, at ..

World’s first ‘speed breeding’ technique to produce Wheat: Australia

Inspired by NASA’s experiments to grow wheat in space, Australian scientists have developed the world’s first ‘speed breeding’ technique that can boost the production of the crop by up to three times. The NASA experiments involved using continuous light on wheat which triggered early reproduction in the plants. The Australian scientists have used the technique ..

GM Mustard

Hybrid variety of a crop is obtained by crossing of two genetically diverse plants of same species and it can give higher yields than their parents. But mustard cannot be naturally hybridised because it is a self-pollinating plant having both male and female reproductive parts in a single flower. But researchers have created hybridised mustard using GM ..