Assignment 4 Essay Example | Topics and Well Written Essays - 500 words - 9

Assignment 4 - Essay Example Organisms can also trigger mutation in their DNA. The process occurs naturally after the genes have stopped functioning normally. Mutations can be helpful and harmful depending on how organisms are affected. For instance, it can be harmful if it leads to faulty protein sequence. This is because it causes some proteins to stop functioning or function poorly. Very few types of mutations are beneficial to organisms. Mutation is also helpful because it make it possible for some species to adapt to their environments. It can lead to irreversible loss of goods characteristics in some species. One of the common medical conditions associated with mutations in humans is the sickle cell anemia which occurs due to mutation of chromosome 11 (Adams, 2009). Another related issue is sexual reproduction that occurs when different organisms within the same species join their gametes. It leads to higher genetic variation compared to asexual production. This is because in sexual reproduction organisms receive more chromosomes from its parents. Organisms that produce sexually have unique characteristics compared to those produced asexually. They are usually not identical to their parents like those produced asexually. The unique characteristics enable the offspring to prosper in their environments. Sexual reproduction has resulted to the occurrence of many breeds of organisms today. Migration also affects genetics in various ways. It increases the chances of different organisms within the same species to mate. Organisms in different regions might have different characteristics. Mating enables the organisms to produce offspring with the parent’s characteristics. Migration can cause subtraction or addition of alleles in a population. For example, if organisms with good genetic characteristics move to another area it causes alleles subtraction in that area. Areas that receive the organisms with good genetic characteristics experience a gain of