Taxonomy & Evolution

1. All of the following are true about archaea except:
a. They are prokaryotes
b. They lack peptidoglycan in their cell walls
c. Some are thermoacidophiles; others are extreme halophiles
d. Evidence suggests they evolved from eukaryotes
e. Some produce methane from carbon dioxide

2. Which of the following characterizes the Domain Bacteria?
a. Prokaryotic cells; ether linkages in phospholipids
b. Eukaryotic cells; ester linkages in phospholipids
c. Prokaryotic cells; ester linkages in phospholipids
d. Complex cellular structures
e. Multicellular

3. Which of the following is the best evidence for a three-domain system?
a. There are three distinctly different cell structures
b. There are three distinctly different cellular chemical compositions
c. There are three distinctly different Gram reactions
d. Some bacteria live in extreme environments
e. There are three distinctly different cell wall types

4. Bacteria and archaea are similar in which of the following?
a. Peptidolgycan cells walls
b. Methionine is the start signal for protein synthesis
c. Sensitively to antibiotics
d. Possess prokaryotic cells
e. None of the above

5. The major distinction between spontaneous generation and evolution is that spontaneous generation addresses the origin of:
a. All life
b. Species
c. Individuals
d. Organelles
e. None of the above

6. The first genetic molecule was probably:
a. RNA
b. DNA
c. ATP
d. Protein
e. All of the above

7. All of the following are true about mitochondrial DNA except:
a. Lacks histones
b. Is circular
c. Is packaged in nucleosomes
d. Is present in multiple copies
e. None of the above

8. The inheritance of mitochondria is an example of:
a. Chromosomal inheritance
b. Maternal inheritance
c. Genetic recombination
d. Mutations
e. None of the above

9. Which one of the following is not true?
a. Chloroplast DNA is circular
b. Mitochondrial DNA is not arranged in nucleosomes
c. More than one copy of chloroplast DNA is present in a cell
d. Mitochondrial DNA is replicated in the nucleus
e. None of the above

10. Fossil evidence indicates that prokaryotic cells first existed on the Earth:
a. 350 years ago
b. 3500 years ago
c. 3.5 million years ago
d. 3.5 billion years ago
e. 3500 billion years ago

11. All of the following is evidence that mitochondria arose from endosymbionts except:
a. Mitochondria are self replicating
b. Mitochondria contain DNA
c. Bacteria reproduce by binary fission
d. Bacteria have microtubules
e. Bacteria have 70S ribosomes

12. Into which domain would you place a human?
a. Animalia
b. Archaea
c. Bacteria
d. Eukarya
e. Monera

13. Into which domain would you place a unicellular, multinucleated organism?
a. Animalia
b. Archaea
c. Bacteria
d. Eukarya
e. Fungi

14. Into which domain would you place the heterotrophic prokaryote living behind your ear?
a. Animalia
b. Archaea
c. Bacteria
d. Eukarya
e. Monera

15. Which one of the following statements is not true?
a. Proteinoids have catalytic activity
b. Coacervates can grow and divide
c. Microspheres have catalytic activity and can grow and divide
d. RNA is self-replicating and has catalytic activity
e. None of the above