A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.
If you were born in 1929 or later, you need to work at least 10 years to become eligible for Social Security. The SSA determines eligibility with a system of credits. Basically, you earn up to four credits for every year worked, and you need a total of 40 credits to qualify for Social Security.
How Long do You Have to Wait for a Replacement Social Security Card? The short answer is the stock-in-trade reply of 10 business days from the Social Security Administration (SSA). The complete answer is somewhat more detailed. What SSA does not say is that 10 business days is the ideal response time.