Richard J. Roberts
Richard J. Roberts
Sir Richard John Robertsis an English biochemist and molecular biologist. He was awarded the 1993 Nobel Prize in Physiology or Medicine with Phillip Allen Sharp for the discovery of introns in eukaryotic DNA and the mechanism of gene-splicing. He currently works at New England Biolabs...
NationalityEnglish
ProfessionScientist
Date of Birth6 September 1943
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The strands of the DNA double helix are held together by hydrogen bonding interactions between the complementary base pairs. Heating DNA in solution easily breaks these hydrogen bonds, allowing the two strands to separate - a process called denaturation or melting.
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The battle over genetically modified crops is rife with business interests and political opportunism. When GMOs were first produced in laboratories around the world, they were rightly heralded as a tremendous leap forward in our ability to supplement nature by providing high-nutrient foods.
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DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses. RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of proteins.
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Each year, several million children either die or suffer irreparable developmental defects because of vitamin A deficiency. Countless others are harmed by malnutrition and starvation. Yet many of these deaths would be preventable if we addressed them head on and used the tools that exist to stop them.
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PubMed Central is vital for researchers and the public alike. Only through free access can everyone find out where the cutting edge of research lies. With access to the latest studies, patients and their families have a much-needed piece of the puzzle as they consider treatment options and potential outcomes.
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The way health care is funded in the U.S. is not sustainable. People are being kept alive who are probably better off dead. The cost of health care is too high, and you don't get much for it - it's twice as high in the U.S. as elsewhere, and it's because of the middlemen.
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During normal cell metabolism, RNA is constantly being made and broken down. The purine and pyrimidine residues are reused by several salvage pathways to make more genetic material. Purine is salvaged in the form of the corresponding nucleotide, whereas pyrimidine is salvaged as the nucleoside.
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Modern genetic engineering makes producing GMO food products relatively easy. GMOs can improve crop yield and greatly enhance the nutritional value of those same crops.
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Much of my work in biology has been driven by my early training in chemistry. When studying a new chemical compound, the first and most important thing is to determine its detailed molecular structure.
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One always has to worry when capitalism has a role in health care. If you're just using health care to make money, you will treat the wrong diseases. Capitalism has its limits. There is a role for governments, and this is one where they should be involved.
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My elementary education was at Christ Church infant school and St. Stephen's junior school. At St. Stephen's, I encountered my first real mentor, the headmaster Mr. Broakes. He must have spotted something unusual in me, for he spent lots of time encouraging my interest in mathematics.
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My father was a motor mechanic, and my mother a homemaker. We moved to Bath when I was four, and so I consider myself a Bathonian.
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Nucleic acids are the main information-carrying molecules of the cell, and, by directing the process of protein synthesis, they determine the inherited characteristics of every living thing. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
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I was first exposed to the idea of macro-molecular sequences while I was a postdoctoral fellow with Jack Strominger at Harvard. During that time, I briefly visited Fred Sanger's laboratory in Cambridge, England, to learn the methodology of RNA fingerprinting and sequencing.