Environmental factors can lead to genetic mutation by generating new gene alleles (either of a pair of genes). The new allele may improve its suitability (of propagation in subsequent generations) within the organism and increases its frequency, or decrease its suitability and finally disappear. Such interactions of genes with environment are another component of the nature-nurture debate.

Three times greater risk to health than believed

There is more carbon dioxide in the atmosphere today than at any point during the last 650,000 years, says a major new study that let scientists peer back in time at "greenhouse gases" that can help

Exposure to chronic noise on the street and at work can increase the risk of a heart attack, German researchers said. Scientists at the Charite University Medical Centre in Berlin who studied the

Can scan for thousands of microbes in 24 hours

Eucalyptus helps remove chromium

The Mediterranean basin and the Alps could be the most affected by climate change brought about by global warming in the 21st century, according to research published in Science magazine. Sixteen

Scientists working in Antarctica have discovered an alarming rise in sea temperature that threatens to disrupt populations of penguins, whales, seals and a host of smaller creatures within a few

Pronounced climate change impact in India by 2071

"Close monitoring" of faults neighbouring in the 7.6 magnitude, earthquake is essential as the Indian plate boundary has become seismically "very active", according to top Indian seismologists. The