Summary
Summary Bio 1108 Lab Practical 2
- Course
- Bio 1108 (BIO1108)
- Institution
- University Of Connecticut
This is a study guide for the material covered in the Bio 1108 Lab practical 2 with Susan Herrick.
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Uconn Bio 1108 Practical 1Study guide for bio lab practical 1
Week 1:
1.lWhat is the scientific method?
2. What are the 6 steps of the scientific method?
Observing and stating the problem
Background research
Hypothesis
Test hypothesis
-experiment must be repeatable
-must eliminate bias
-require a control
-experimental group has a change called variable
Results and conclusion
Publication of results
3. What are the traits of a good hypothesis?
- Statements, can be tested, educated guess
4. What are the traits of a good experiment?
5. What is the difference between an experimental group and a control group?
6. Why is it important to publish the results of a scientific experiment?
Week 2:
Macroevolution: major evolutionary change
Vestige
Homology: similar anatomical structure
Cladogram: depicts evolutionary relationships among different taxa
, Taxon: the animals/organisms listed
Node: the point where a common ancestor is shared by two or more taxa
Synapomorphy: shared derived characteristics
Clade: consists of a group of organisms and includes the ancestor and all its descendants
Concepts to review in the manual:
Seven lines of evidence for macroevolution
1. Fossil record
2. Molecular sequence data
3. Structural homology
4. Developmental similarity
5. Vestigial structures
6. Convergent evolution
7. Patterns of animal and plant distributions
Fossil preservation types
- Impression: no organic matter preserved
- Compression: some organic matter preserved
- Petrification: plant tissues are infiltrated and/or replaced with minerals
- Amber: preservation of fossils within the fossilized plant sap (amber)
Three domains of life: eukarya, eubacteria, archaea
Geologic time scale
- Earth is 4.6 billion years old
- Broken up into eons, eras, periods, and epochs
Character matrix
Week 3:
Evolution: changes in the relative frequencies of alleles in a population’s gene pool over time
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