Selection, mutation, migration, and genetic drift are the mechanisms that effect changes in allele frequencies, and when one or more of these forces are acting, the population violates Hardy ...

These so-called neutral mutations are not affected by natural selection and, hence, their fate is essentially driven by genetic drift. Interestingly, Darwin himself recognized that some traits ...

Those changes have been both minor -- variations of a few letters in the code -- and major -- mutations in which ... individuals are the result of "genetic drift" -- random changes that go on ...

Among the forms of monogenic macular degeneration, the most common is Stargardt disease. This disease is caused by mutations in the ATP-binding cassette transporter alpha 4 subunit (ABCA4) gene, ...

Because of their closed population stemming from a small number of German immigrants -- about 200 individuals -- the Amish carry unusual concentrations of gene mutations that cause a number of ...

In a recent study published in Scientific Reports, researchers at Penn Vet and the University of Padova in Padova, Italy, found a genetic mutation in three Labrador retriever littermates affected ...

DNA contains genes that carry instructions for the manufacture of a protein. If a mutation occurs in a gene that results in a change to the sequence of DNA bases, then the structure of the protein ...

Tumors contain thousands of genetic changes, but only a few are actually cancer-causing. A quicker way to identify these driver mutations could lead to more targeted cancer treatments. Scientists can ...

Now, scientists have revealed that a newly discovered 'fat gene' could be to blame. Experts from the University of Cambridge say that a mutation to a gene called DENND1B reduces the ability ...

This new discovery led investigators on a hunt for a “culprit,” a genetic mutation that could produce these proteins. In the paper, researchers describe how they developed a high-tech way to ...

Then, there is mutation induction caused by radiation, chemicals, and pollutants altering the DNA sequence. Another source is genetic drift, a random change in allele frequencies within a population.