<p>General Biology: BI101 Spring, 2007 ANSWER KEY STUDY QUESTIONS: Ch 19</p><p>1. c. DNA or RNA and a protein coat</p><p>2. By what process, is mRNA made from DNA? b. transcription</p><p>3. True Viruses must reproduce in a host cell because they lack organelles needed to duplicate viral components. </p><p>4. Translation of mRNA occurs in the: b. cytoplasm.</p><p>1. HIV encounters its host cells: c. by traveling through the blood after entering the body via contact with blood or body fluids.</p><p>3. The host cell in which the HIV virus reproduces is a: c. helper T cell.</p><p>4. Reverse transcription is the process by which: a. DNA is made from RNA.</p><p>4. Viruses make new viral copies (reproduce): c. in a host cell.</p><p>5. After a retrovirus enters its host cell: a. reverse transcription creates a strand of DNA complementary to the viral RNA.</p><p>6. After reverse transcription creates viral DNA from the viral RNA, the viral DNA: c. enters the host cell’s nucleus and is integrated into the host’s chromosome.</p><p>1. The herpes virus encounters its host cells by: a. direct contact with another person.</p><p>2. The host cell in which the herpes virus reproduces is a: d. skin cell.</p><p>3. After entering a skin cell, _____ in the nucleus of the skin cell. c. viral DNA is copied </p><p>4. After viral DNA and viral and envelope proteins are assembled into new viruses, they exit the host cell via: b. exocytosis.</p><p>1. The genetic material is chemically known as: a. DNA.</p><p>2. (True) A segment of DNA that codes for a complete protein is a gene. </p><p>3. The DNA of an organism is usually arranged into discrete, contiguous lengths known as: </p><p>04f9110dbc5217f3795dff99c1e432a9.doc 1 4/6/2018 General Biology: BI101 Spring, 2007 ANSWER KEY STUDY QUESTIONS: Ch 19</p><p> b. chromosomes. 5. Prokaryotes have: e. a, b and c are all true</p><p>1. During bacterial conjugation, the transferred item is a: c. plasmid.</p><p>2. At the end of conjugation: a. one cell has lost a plasmid, while the other has gained one.</p><p>7. At the end of conjugation the recipient bacterium ends up with some new genes, which may endow it with new capabilities, such as: a. the ability to resist antibiotics</p><p>8. Sexual reproduction performed by eukaryotes is similar to bacterial conjugation because: b. genetic variability increases..</p><p>04f9110dbc5217f3795dff99c1e432a9.doc 2 4/6/2018</p>