Help me with this one please

Some physical characteristics, such as freckles, eyelash length, and the ability to roll one's tongue up from the sides, are determined in a relatively simple manner by gene's inherited from one's biological parents. Each person has two genes that determine whether or not he or she will have freckles, one from the father and one from the mother. If a child inherits a "freckles" gene from either parent or both parents, the child has freckles. In order not to have freckles, the child must inherit a "no-freckles" gene from both parents. This explains why the gene for freckles is called dominant, and the gene for no freckles is called recessive. A parent with two freckles genes must pass on a freckles gene to the child; a parent with two no-freckles genes must pass on a no-freckles gene. If a parent has one of each, the probability is 1/2 that he or she will pass on the freckles gene, and 1/2 that they will pass on the no-freckles gene. Now consider the chance of inheriting freckles. 1) In what sense does the gene for freckles "dominate" the gene for no freckles? 2) What is the probability that a child will have freckles if both parents do not have freckles? 3) What is the probability that a child will not have freckles if each parent has one freckles gene and one no-freckles gene? 4) Can you determine the probability that a child of freckled parents also will have freckles? Why or why not