To do this you must use the Earned Income Credit Worksheet (EIC Worksheet) in the instruction booklet for Form 1040, Form 1040A, or Form 1040EZ, and the Earned Income Credit (EIC) Table in the instruction booklet, or use the EITC Assistant Tool online. It is available in both English and Spanish.
Making the world better, one answer at a time. A point mutation, or single base substitution, is a type of mutation that causes the replacement of a single base nucleotide with another nucleotide of the genetic material, DNA or RNA.One can categorize point mutations as follows: Transition mutations are about an order of magnitude more common than transversions.aking the world better, one answer at a time. A point mutation, or single base substitution, is a type of mutation that causes the replacement of a single base nucleotide with another nucleotide of the genetic material, DNA or RNA. One can categorize point mutations as follows:
At the level of translation, when RNA copied from DNA is converted into a string of amino acids during protein synthesis, point mutations often manifest as functional changes in the final protein product. Thus, there exist functional groupings for point mutations.