2,461 results
2,461 results for: mutations
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Telltale Heart
Genetics is revealing the first steps in building a heart—the organ that is first to develop, subject to the most birth defects, and difficult to heal when damaged later in life.
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Sticky Situations
Bacteria find strength in numbers as members of huge, mucous-covered communities called biofilms that can stall, equip, and initiate fierce infections.
- Health & Medicine
Ancient Estrogen
A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.
- Health & Medicine
Vaccine Verity
Widely publicized concerns about vaccination leading to autism, multiple sclerosis, and diabetes have not been borne out by research.
- Health & Medicine
Immunity’s Eyes
Proteins called toll-like receptors allow human immune cells to detect microbes.
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Dolly Was Lucky
Scientists studying the data on animal cloning argue that cloning a person would be unsafe.
- Health & Medicine
Attacking Alzheimer’s
Some researchers now suggest that the so-called amyloid hypothesis is overstated and that other entities, including tau tangles, are as important as beta-amyloid in Alzheimer's disease.
- Health & Medicine
The Seeds of Malaria
By studying the molecular footprints of evolution in parasites and human hosts, geneticists are casting light on when and how malaria became the menace it is.
- Health & Medicine
The Science of Secretin
The discovery that a gut hormone also exists in the brain may shed light on the origins of autism.
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Science News of the Year 2001
A review of important scientific achievements reported in Science News during the year 2001.
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Biological Dark Matter
The discovery that some genes encode RNA strands instead of proteins has surprised biologists.
- Health & Medicine
The Persistent Problem of Cystic Fibrosis
Ten years after the discovery of the gene that, when mutated, causes cystic fibrosis, researchers are still struggling to understand why deadly lung infections are so common among people with the disease.
