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WGU Introduction-to-Biology Exam Syllabus Topics:
| Section | Weight | Objectives |
| Topic 1: Genetics and Heredity | 20–25% | - Gene expression and protein synthesis
- Mendelian and non-Mendelian inheritance
- DNA structure and replication
- Chromosomes and cell division
- Mutation and genetic variation
|
| Topic 2: Energy and Metabolism | 15–20% | - Energy flow in biological systems
- Photosynthesis
- Cellular respiration
- Enzymes and metabolic pathways
|
| Topic 3: Ecology and Interdependence | 15–20% | - Population dynamics
- Human impact on ecosystems
- Ecosystem structure and energy flow
- Biomes and global ecology
- Community interactions
|
| Topic 4: Basic Principles of Life | 20–25% | - Chemical foundations of life
- Characteristics of living organisms
- Cell structure and function
- Scientific method and biological inquiry
|
| Topic 5: Evolution and Diversity of Life | 15–20% | - Speciation and classification
- Mechanisms of evolution
- Overview of major biological groups
- Natural selection and adaptation
|
WGU Introduction to Biology (KBC1, C190) Sample Questions:
1. 
Using theTetrapod Cladogram (Node E), the common ancestor at locationEgives rise to which two organisms?(Choose 2 answers)
A) Tiger
B) Gorilla
C) Lizard
D) Salamander
2. How isDNA organized during prophase, and why?
A) Organized into paired chromatids to keep it lined up at the center
B) Uncondensed because it needs to move toward the poles
C) Uncondensed because it needs to be lined up at the center
D) Condensed, which makes it easier to move
3. A subatomic particle has a relative mass of 1, isuncharged, and is located in thecenter(nucleus) of the atom.
What is this particle?
A) Proton
B) Orbit
C) Neutron
D) Electron
4. How doesgene flowtypically affect therecipientpopulation?
A) Increases genetic variability
B) Exacerbates natural selection
C) Exacerbates genetic drift
D) Increases random mating
5. The humanMN blood groupis determined by two codominant alleles (MandN). In one family,alloffspring are MN. What are themost probable genotypesof the parents?
A) MM and NN
B) NN and MN
C) MN and MN
D) MM and MN
Solutions:
Question # 1 Answer: A,B | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: A |