PCB 3036 GENTICS EXAM #1 2019

PCB 3036 GENTICS EXAM #1 2019 Chapter 1 1. The case of albinism among the Hopi Indians of Black Mesa is different from other cases of albinism because of all of the following EXCEPT: a. the albinism did not involve vision defects. 2. Genetics has played a key role in which of the following areas? a. Agriculture, medicine, pharmaceutical production 3. Genetic variation in populations: a. provides the basis of adaptation. 4. Genetics as a discipline can be subdivided into all of the following EXCEPT: a. acquisition genetics. 5. Early notions of heredity that do not seem to describe it accurately include all of the following EXCEPT: a. germ-plasm theory. 6. While modern genetics starts with the experiments of Gregor Mendel in 1866, it wasn't until the start of the 20th century that those studies became well known, amplifying the work of: a. Sutton, who proposed that genes were on chromosomes., Morgan, who identified fruit fly mutations., Haldane and others who used populations to connect genetics to evolution. 7. Prokaryotes and eukaryotes differ in that: a. None of the above. 8. Genes: a. are carried on chromosomes., come in pairs in eukaryotic cells., come in alternative forms, known as alleles. 9. Phenotypes are: a. measurable traits of an organism., not inherited directly. 10. The sexual life cycle involves: a. mitosis, followed by meiosis and fertilization. 11. The flow of information is as follows: a. DNA to RNA to protein. 12. Mutations are changes of DNA: a. that can affect a single gene., that can affect large regions of chromosomes., that can be passed on to daughter cells. 13. Which theory shares some conceptual overlap with pangenesis? a. Germ-plasm 14. Domestication of plants and animals first began about a. 10,000–12,000 years ago. 15. Which of the following is a correct statement? A. The major difference between eukaryotic and prokaryotic cells is the presence or absence of a defined nucleus, respectively 16. Heritable changes in genetic information would affect a. DNA, RNA, and Protein 17. Which of the following examples of scientists and subfields of genetics are matched incorrectly? a. Morgan—molecular genetics