We have uppercase R, uppercase R, which is homozygous dominant and we have the heterozygous, as shown. So let's suppose we have a man who is heterozygous and a female who is homozygous recessive and we have a female who is homozygous recessive and a male who is homozygous dominant. In both cases, when these individuals made to produce a child, an offspring there is a probability that the offspring will be RH positive. In this case, there is a 50% chance of the child being RH positive. So we have 1250 percent and 50% of the child being RH negative. But in this case, it's 100% likelihood that the child will be R H positive.