How Much Does DNA Change Over Lifetime? A study just out shows that as we get older, our DNA changes. A lot. Researchers in Iceland and the U.S. showed that over a period of 10-16 years, some people’s DNA changed as much as 20%. These differences aren’t in the famous A, T, C, and G’s
How Are Genes Extracted From DNA? DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. When an ice-cold alcohol is added to a solution of DNA, the DNA precipitates out of solution. If there is enough DNA in the solution, you will see a stringy white mass. Can you
How Does DNA Mutation Occur From DNA Damage? When DNA carrying a damaged base is replicated, an incorrect base can often be inserted opposite the site of the damaged base in the complementary strand, and this can become a mutation in the next round of replication. Also DNA double-strand breaks may be repaired by an
What Are The Common Types Of Epigenetic Modifications? There are two types of epigenetic modifications – DNA methylation and histone modifications (16). What is the most common type of epigenetic attachment? A common type of epigenetic modification is called DNA methylation. DNA methylation involves the attachment of small chemical groups called methyl groups (each consisting