Jakarta post:
The Research , publishedintheproceedings of the Royal Society B, has investigated the bacterium in eleven individuals ranging from as far back as the Bronze age up to the twentieth century. Samples have been taken from individuals in Europe and in both pre and post-colonial America. The oldest case study was that of an individual from 1200 BC, found in Burial cave in Mountainsell (Licidia, Catalonia). The study found that ancient genetic material from principle Bacterium, streptococcus mutant, cause dental carries. The mutant has increased its genetic material change overtime. This is possibly due to the coincidence of dietary changes that are linked with the expansion of humanity. Similar study conducted by researchers from the University Autonma de Barcelona (UAB) and laboratoria Nasional de Genomica para la Bie diversided, Mexico, putthe genetic material in order and found that genetic diversity has been produced, especially in the fragment of a gene that codifies a virulence factor known as dextranase
How could the ancient genetic expand to humanity?
a. Through coincidental links with human’s dietary changes.
b. Through the change in its genetic material
c. Through an increase in genetic diversity
d. Through the fragment of a gene
e. Through the investigated bacterium of eleven individuals
Jawaban: A
Pada teks tertulis bahwa The study found that ancient genetic material from principle bacterium, streptococcus mutant, cause dental carries. The mutant has increased its genetic material change overtime. This is possibly due to the coincidence of dietary changes that are linked with the expansion of humanity. Yang artinya adalah studi ini menemukan bahwa sebuah materi genetik dari Bakteri mutan streptococcus, menyebabkan karies gigi. Mutan telah melakukan perubahan peningkatan pada materi genetik. Hal ini mungkin karena perubahan pola makan yang terkait dengan peningkatan jumlah manusia. Jadi, jawaban yang tepat adalah through coincidental links with human’s dietary changes.
