TEST BANK FOR GENETICS A CONCEPTUAL APPROACH, 7TH EDITION (PIERCE, 2020), CHAPTER 1-26 | ALL CHAPTERS EXAM QUESTIONS AND 100% CORRECT COMPLETE ANSWERS WITH RATIONALES 100 VERIFIED BY EXPERTS AND GRADED A+ WELL EXPLAINED ANSWERS AND PROVEN ALREADY PASSED!!

TEST BANK FOR GENETICS A CONCEPTUAL APPROACH, 7TH EDITION (PIERCE, 2020), CHAPTER 1-26 | ALL CHAPTERS EXAM QUESTIONS AND 100% CORRECT COMPLETE ANSWERS WITH RATIONALES 100 VERIFIED BY EXPERTS AND GRADED A+ WELL EXPLAINED ANSWERS AND PROVEN ALREADY PASSED!!!!!!WITH 1005 GUARANTEED SUCCESS AFTER DOWNLOAD (ALL YOU NEED TO PASS YOUR EXAMS) Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people. However, the trait occurs at a frequency of 1 in 200 in certain Hopi villages of Black Mesa in Arizona. Explain in terms of natural selection why albinism is so rare in most human populations. In most populations, there is fairly strong selection against albinism because albinos don't produce melanin, causing their skin cells not to be protected from the damaging effects of sunlight. Also, the lack of melanin in their eyes causes them to have poor eyesight. Finally, in most cultures albinos are seen as abnormal, and they are not normally sought out for marriage and mating. Therefore, in most populations the alleles that cause albinism are selected against, and they decrease in frequency or are kept at a low level, causing the recessive trait to be rare. Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people. However, the trait occurs at a frequency of 1 in 200 in certain Hopi villages of Black Mesa in Arizona. Explain in terms of natural selection why the trait is so much more common among the Hopis of Black Mesa. Albinos occupy a privileged position among the Hopis of Black Mesa. In this culture, albinos are viewed as especially pretty, clean, and intelligent, and they often occupy positions of leadership. Albinos are celebrated in the villages as a sign of purity of Hopi blood in the community. Furthermore, albinos are often excused from normal male field labor because of their sensitivity to sunlight, causing them to be left behind in the village with the women during the daytime. This allows them extra mating opportunities compared to the other men of the village. Therefore, the alleles that cause albinism are either selected for in this culture or at least not selected against as strongly as in other cultures, allowing the trait to occur at a much higher frequency. Which one of the following pairings between the subdiscipline of genetics and the phenomenon is INCORRECT? a. evolution—population genetics b. gene regulation—molecular genetics c. allelic frequency alteration—population genetics d. arrangement of genes on chromosome—transmission genetics e. chemical nature of the gene—transmission genetics chemical nature of the gene-transmission genetics Which one of the following topics of research belongs to the discipline of transmission genetics? a. inheritance pattern of gene alleles b. mechanism of DNA replication c. gene expression patterns