A SEP IRA (Simplified Employee Pension) is a retirement plan that is popular with many small business owners and self employed individuals. The 2015 SEP IRA contribution limit is $53,000 (the 2014 SEP limit is $52,000).
Meanwhile, other studies suggest that another gene, DRD4, may also play a role in traits such as shyness and anxiety. The DRD4 gene codes for a protein that binds dopamine, another chemical messenger that has powerful effects in the brain. Again, the DRD4 gene comes in two forms: a long and a short version.
Genetics is the study of the traits people and other animals inherit from their family through DNA. Compare the size of your nose to your father's and you are dealing with genetics â but only if he's your biological father. Genetics involves studying genes â DNA â to look at how organisms evolve and are related. Scientists use genetics to prove whether genes for things like depression or intelligence exist.