Dominance in genetics is a relationship between alleles of one gene, in which the effect on phenotype of one allele masks the contribution of a second allele at the same locus. The first allele is dominant and the second allele is recessive.For genes on an autosome (any chromosome other than a sex chromosome), the alleles and their associated traits are autosomal dominant or autosomal recessive. Dominance is a key concept in Mendelian inheritance and classical genetics.n Rr individuals the R allele masks the presence of the r allele, so these individuals also have round peas. Thus, allele R is dominant to allele r, and allele r is recessive to allele R. This use of upper case letters for dominant alleles and lower case ones for recessive alleles is a widely followed convention.
For example, suppose you made a $3,000 annual contribution to a Roth IRA early in 2003, then got a larger bonus than you expected and found that your permitted contribution was only $1,800. Your excess contribution was $1,200.If you didn't correct the excess contribution for 2003, you had to pay $72 excess contribution tax (6% of $1,200). And if you left the problem uncorrected beyond the end of 2004, you owe another $72.our excess contribution was $1,200. If you didn't correct the excess contribution for 2003, you had to pay $72 excess contribution tax (6% of $1,200). And if you left the problem uncorrected beyond the end of 2004, you owe another $72.
If you qualify, an IRA contribution can be a great way to reduce this year's taxes. For example, if you are in the 35 percent tax bracket and make a $5,500 contribution -- the maximum amount for 2014 -- you can save as much as $1,925 in taxes.Best of all, you can contribute to an IRA all the way until tax filing day, typically April 15.ake an IRA contribution. Contributions to a traditional individual retirement account can be tax-deductible in the year you make them. While IRS rules on IRA contributions vary, you can generally deduct the full amount of an IRA contribution if you and your spouse aren't covered by retirement plans at work.