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12th February is the 199th birthday of Charles Darwin (1809 - 1882) and the 150th birthday of his theory of evolution. Darwin’s subsequent book titled ‘The Origin of Species’ still holds relatively firm in this modern age.
Today, Darwin’s groundbreaking work on the origin of species forms the basis of modern evolutionary biology and is at the heart of biomedical research.
Evolution happens […]
deCode has analysed its 200 year old Icelandic genealogical database and found that the closer the kinship of the couple the more children they are likely to have. This study provides the most comprehensive answer yet to the longstanding question of how kinship affects fertility in humans.
For example, for women born between 1800 and 1824, those […]
Nature constantly ”shuffles” our genes around in our genome, creating a genetic cocktail of human chromosomes and trying out different changes as it does so. Some of these changes represent neither a positive nor a negative mutation or a competitive advantage. One such ’shuffle’ is eye color.
Originally we all had brown eyes. Then about 6-10,000 years […]
Human chromosomes (grey) capped by telomeres (white)
We all know the benefits of regular exercise but scientists now have proof that it can really make you look younger! Telomeres, regions of highly repetitive DNA at the end of a linear chromosome shorten over time. The shortening of telomeres is strongly correlated with ageing and it is […]
Scientists from deCODE genetics have reported the discovery of two common, single-letter variants in the sequence of the human genome (SNPs) that regulate one of the principle motors of evolution. Versions of the two SNPs, located on chromosome 4p16, have a genome-wide impact on the rate of recombination - the reshuffling of the genome that […]
New research has shown evidence that genes have the ability to recognize similarities in each other from a distance, without any proteins or other biological molecules aiding the process. This discovery could explain how similar genes find each other and group together in order to perform key processes involved in the evolution of species.
According to […]
Micrograph images of synthetic Mycoplasma genitalium
J Craig Venter and his team at the J Craig Venter Institute Rockville, Md. Venter continue to expand our horizons of what constitutes life. They have built, from scratch, a synthetic chromosome containing all the genetic material needed to produce a primitive bacterium - this is considered a giant step toward the creation […]
Depression affects enormous numbers of people from across the world. One in four of us will suffer from it at some point in our lives; one in ten will in the next year, and about one in twenty of us is living with the condition right now.
A new book, recently published, suggests depression may have persisted […]
Fellow science blogger Pharyngula has blogged this but I just have to show Genetics and Health readers this wonderful video showing dolphins’ version of home entertainment!
Elaine Warburton
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