Directions: Both the multiple choice portion and the essay portion of the examination will be available on Wednesday of Module 6 at 12:01 AM ET. The essay portion will close on Sunday at 11:55 PM ET.
Choose 7 of the following 10 questions listed below. Your answer for
each question should be a minimum of 150 words (half page). Please
number your answers and print the number of the question you are
answering above your answers, e.g., âQuestion 3 answer.â We suggest you
write or print out the essay questions for handy reference as you
develop your answers.1. What were the historical scientific breakthroughs that led to our current understanding of viruses, viroids, and prions?2. How do viruses, viroids, prions, and bacteria differ in terms of their biological identity and method of infection?3. What are the chemical and physical properties and the lytic/latent cycles of animal and plant viruses?4.
How can viruses lead to cancer? Be sure to use specific examples (e.g.
virus name and the cancer it causes) to illustrate your points.5.
You are growing Bacillus subtilis in nine 16,000-liter fermenters to
produce enzymes for industrial use. The Bacillus cultures had been
growing for 2 days when the cells in one of the fermenters lysed.
Explain what happened in this fermenter.6.
What are the defining characteristics of protozoa in general, and,
specifically, how can you differentiate the following phyla of protozoa:
Archaezoa, Microspora, Amoebozoa, Apicomplexa, Ciliophora, and
Euglenozoa? Be sure to use specific examples (e.g. specific species of
protozoan) to illustrate your points.7.
What are the defining characteristics and methods of reproduction of
organisms belonging to the Kingdom Fungi in general, and how can you
differentiate among the following three fungal phyla, Zygomycota,
Ascomycota, and Basidiomycota, in terms of their method of reproduction,
method of obtaining nutrients, and importance to humans?