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Updated: Sep 17, 2026
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WGU Introduction-to-Biology Exam Overview:
| Certification Vendor: | Western Governors University (WGU) |
|---|---|
| Exam Name: | Introduction to Biology |
| Exam Number: | KBC1, C190 |
| Exam Duration: | 105 minutes |
| Certificate Validity Period: | No expiration |
| Available Languages: | English |
| Exam Format: | Diagram Labeling, True/False, Multiple Choice |
| Passing Score: | 65% |
| Exam Price: | Included in tuition / No separate fee |
| Real Exam Qty: | 77–80 |
| Recommended Training: | WGU Course Materials & Learning Resources |
| Exam Registration: | WGU Student Portal |
| Sample Questions: | WGU Introduction-to-Biology Sample Questions |
| Exam Way: | Online, proctored remotely |
| Pre Condition: | None; open to all enrolled students |
| Official Syllabus URL: | https://www.wgu.edu/online-college-courses/introduction-biology.html |
WGU Introduction-to-Biology Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Evolution and Diversity of Life | 15–20% | - Natural selection and adaptation - Speciation and classification - Mechanisms of evolution - Overview of major biological groups |
| Topic 2: Genetics and Heredity | 20–25% | - DNA structure and replication - Chromosomes and cell division - Mutation and genetic variation - Gene expression and protein synthesis - Mendelian and non-Mendelian inheritance |
| Topic 3: Energy and Metabolism | 15–20% | - Cellular respiration - Enzymes and metabolic pathways - Energy flow in biological systems - Photosynthesis |
| Topic 4: Basic Principles of Life | 20–25% | - Chemical foundations of life - Cell structure and function - Scientific method and biological inquiry - Characteristics of living organisms |
| Topic 5: Ecology and Interdependence | 15–20% | - Community interactions - Human impact on ecosystems - Population dynamics - Ecosystem structure and energy flow - Biomes and global ecology |
WGU Introduction to Biology (KBC1, C190) Sample Questions:
What is the name of the structure thatjoins two sister chromatidstogether?
- A. Centromere
- B. Chromosome
- C. Nucleus
- D. Histone
Correct Answer: A 🗳️
What is a primary characteristic ofperipheral membrane proteins?
- A. They span the entire lipid bilayer, sometimes multiple times.
- B. Detergents or nonpolar solvents are necessary to remove them from the membrane.
- C. Weak intermolecular forces keep them attached to the lipid membrane.
- D. They cannot be post-translationally modified.
Correct Answer: C 🗳️
The leopard seal is part of an Antarctic food web. It feeds oncod, which feed on small aquatic plants. Based on the energy transfer in the exhibit, how much energy does the leopard seal receive by feeding on cod?
- A. 600 KJ
- B. 540 KJ
- C. 60 KJ
- D. 5,400 KJ
Correct Answer: A 🗳️
Which genotype indicates an individual withno recessive alleles?
- A. aaBB
- B. AABB
- C. aabb
- D. AAbb
Correct Answer: B 🗳️
A subatomic particle has a relative mass of 1, isuncharged, and is located in thecenter(nucleus) of the atom.
What is this particle?
- A. Neutron
- B. Electron
- C. Orbit
- D. Proton
Correct Answer: A 🗳️
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