Friday, February 24, 2012

BOW 4 Semester 2 (Blog of the Week)

Natural Selection is a process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment tend to survive, reproduce, increase in number of frequency, and therefore, are able to transmit and perpetuate their essential genotypic qualities to succeeding generations.
During natural selection it acts on a phenotype, but the genetic basis of the phenotype that gives a reproductive advantage will become more common in a population of a specific genotype. Over time, this process can result in populations that have an increased rate of mutations. In other words, natural selection is an important process by which evolution takes place within a population of organisms.
            



Reference:   http://www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html

Thursday, February 16, 2012

BOW 3 Semester 2 (Blog of the Week)

If a clone originates from an existing person, who is the parent?
The parent is the person in which the DNA was taken from because cloning is the method of producing a baby that has the same genes as its parent. During cloning, you take an egg and remove its nucleus, which contains the DNA genes. Then you take the DNA from the adult cell and insert it into the egg.

 

Reference: http://cbhd.org/content/human-cloning

Should cloning research be regulated? How, and by whom?
Cloning research should not be regulated because the medical benefits of cloning could have the potential to bring our society to a whole new level. With today's technology to identify a genetic defect before the child is born, and the ability to eliminate a disease with a medical procedure while the child is still in the mother's womb. With cloning, children who would have been born with defects or diseases would instead be born healthy.
 
                                                                                                                                   

Reference: http://www.buzzle.com/articles/pros-and-cons-of-cloning.html