Is it possible to have "too many" mutations? What about "too few"? While mutations are necessary for evolution, they can damage existing adaptations as well. The statement that mutations are ...

A mutation is a change in the sequence of an organism's DNA. What causes a mutation? Mutations can be caused by high-energy sources such as radiation or by chemicals in the environment.

Ninety-seven Puerto Rican patients with tropical sprue were studied. Forty-seven patients were untreated at the time of study, and 50 had been receiving therapy for various periods. The untreated ...

Applied since the 1930s to accelerate the process of developing and selecting new valuable agronomic traits, mutation breeding uses a plant’s own genetic make-up, mimicking the natural process of ...

Researchers discovered that mammals - from tigers to humans - have roughly the same number of mutations by the time they die of old age. But short-lived animals tend to burn through their ...

Gene mutations associated with non-small cell lung cancer include EGFR, HER2, and more. Lung cancer mutations can determine your options for testing and treatment. Genes are the instructions that ...

How could a "bad" gene-- the mutation that causes the sometimes lethal sickle cell disease -- also be beneficial? On the other hand, if it didn't provide some survival advantage, why had the ...

Researchers are adding new evidence to the emerging concept that 'silent' or synonymous mutations may have crucial consequences. Their study showed how a synonymous mutation in one gene can ...

Sprue pickers are industrial robots that are designed to remove sprue from molded parts. The term “sprue” refers to the passage through which liquid or molten material is introduced, and to the excess ...

Ionizing radiation is a widely used physical agent to treat the seeds and other plant material of crops to create heritable mutations. Natural means to induce genetic diversity have been exploited for ...

Sprue bushings are hardened-steel mold components that accept an extrusion nozzle and provide the opening used to transfer molten plastic to the mold cavity. They help reduce cooling times and produce ...

Now, researchers from the University of Notre Dame are adding new evidence to the emerging concept that these silent mutations may have crucial consequences. Their study, published in the ...