When an organism is sessile, or slow moving it might be very hard for that organism to find food, shelter and a reproductive mate. One of many solutions to the problem of finding a mate is hermaphroditism. When an organism is hermaphroditic it means that it has the reproductive organs of both sexes and that it is able to self-fertilize. This solution, although sometimes very useful, if used all the time can lead to inbreeding and have negative effects on the genetic diversity of the population. Therefore, hermaphroditic organisms self-fertilize only in cases where there is no available mate to be found.
The inheritance of a dominant gene E results in the free out unattached earlobe. If the lobe is attached directly to the head, the individual is homozygous recessive, and the rest genotype is present. Hope this helps.
