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- 1. Multiple Choice
High biodiversity is
having many individuals of the same organism
having few individuals of the same organism
having a many varieties of different organisms
having one of each type of organism
- 2. Multiple Choice
Scientists attempted to determine the evolutionary relationships between three different finch species, A , B , and C . In order to do this, they examined the physical characteristics and DNA of these species. DNA was extracted from all three species and analyzed using gel electrophoresis. The results are shown in the diagram. Which statement best describes the method used above to determine the evolutionary relationships between three species of finches?
Examine the structure of the beaks and compare them.
Observe behavioral and physical characteristics of all the finches and group them by similarities.
Obtain molecular evidence from all three species and identify similarities.
Compare common ancestors of all three of the species to see if they are the same.
- 3. Multiple Choice
Which chemicals are used to cut DNA into fragments for a gel electrophoresis procedure?
molecular bases
restriction enzymes
hormones
ATP molecules
- 4. Multiple Choice
A laboratory technique that separates pigments by molecular sizes is known as:
gel electrophoresis
biological staining
dissection
chromatography
- 5. Multiple ChoiceTwo organisms that are closely related would havevery similar DNA sequenceexactly the same DNA sequencesno proteins in commoncompletely different DNA sequence
- 6. Multiple Choice
Protein sequences in one organism that resemble those of another suggest a
coincidence
lack of evolutionary relationship
great number of mutations
shared ancestry, aka common ancestry
- 7. Multiple Choice
Examination of DNA for evidence of evolutionary relationships, is the study of what kind of evidence?
structural anatomy
embryology
fossil record
molecular
- 8. Multiple Choice
According to this cladogram, sharks are MOST closely related to which organism?
Amphibians
Ray finned fish
Crocodiles
Birds
- 9. Multiple Choice
Which evidence provides the most credibility of relationship between organisms?
genetic base sequences
the presence of an enzyme
plant pigments
structural characteristics of the stems
- 10. Multiple Choice
What is the purpose of gel electrophoresis?
to cut DNA
to count the genes in DNA
to separate DNA fragments based on their sizes
to splice a DNA fragment into a plasmid
- 11. Multiple ChoiceWhich DNA fragment bands move faster and farther in a gel electrophoresis?there is no way to tellthe largest onesthe smallest onesnone of these
- 12. Multiple ChoiceWhich two bat species are most closely related?Bat 1 and Bat 2Bat 1 and Bat 3Bat 2 and Bat 3There’s no way to tell
- 13. Multiple Choice
Any substance that indirectly shows the presence of another substance
Benedict's
Lugol's
Indicator
Solution
- 14. Multiple Choice
What human activities could cause Botana curus to become extinct? (Choose all that apply)
destruction of natural habitat
pollution
introduction of foreign species that compete with native species
planting more Botana curus
- 15. Multiple Choice
Why is it important to preserve Botana curus? (Choose all that apply)
We could lose the genetic material if it becomes extinct
The extinction of this species could lead to the extinction of another species
It might be good for other medicinal properties
It may be part of its ecosystem in ways we don't know about yet
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