CCBC BIO 110 Exam 4 Study Guide 2026–2027 | Biology Practice Questions and Answers | Complete Exam Review

CCBC BIO 110 Exam 4 Prep
2026-2027 | Biology
Practice Questions and
Answers | Complete Exam
Review
Q1: Evolution - Natural Selection
Question: Natural selection definition?

 A) Incorrect
 B) Correct biology principle – correct
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: B

Detailed Explained Rationale: B correct – Natural selection: differential
survival/reproduction of individuals with favorable traits, leads to adaptation. Not
intentional.



Q2: Genetics - Meiosis
Question: Meiosis vs mitosis difference?

 A) Correct biology principle – correct
 B) Incorrect
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: A

Detailed Explained Rationale: A correct – Meiosis reduces chromosome number haploid,
2 divisions, genetic variation via crossing over/independent assortment. Mitosis identical
diploid somatic.

,Q3: DNA - Replication
Question: DNA replication semi-conservative?

 A) Correct biology principle – correct
 B) Incorrect
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: A

Detailed Explained Rationale: A correct – Semi-conservative each new double helix has
one old + one new strand. Enzymes: helicase, DNA polymerase, ligase.



Q4: Ecology - Population
Question: Logistic growth carrying capacity?

 A) Incorrect
 B) Correct biology principle – correct
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: B

Detailed Explained Rationale: B correct – Logistic S-curve, carrying capacity K limits due
resources, density-dependent factors. Exponential J-curve unlimited.



Q5: Classification
Question: Domain Bacteria vs Archaea?

 A) Correct biology principle – correct
 B) Incorrect
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: A

Detailed Explained Rationale: A correct – Both prokaryotes no nucleus, but Archaea
extremophiles, different cell wall. Eukarya has nucleus.

, Q6: Photosynthesis
Question: Light-dependent vs Calvin cycle?

 A) Incorrect
 B) Correct biology principle – correct
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: B

Detailed Explained Rationale: B correct – Light-dependent thylakoid makes ATP/NADPH
using light, Calvin stroma fixes CO2 to glucose using ATP/NADPH.



Q7: Human Body - Immune
Question: Innate vs adaptive immunity?

 A) Correct biology principle – correct
 B) Incorrect
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: A

Detailed Explained Rationale: A correct – Innate non-specific immediate (skin,
macrophages, inflammation). Adaptive specific memory (B antibodies, T cytotoxic).



Q8: Biotech - PCR
Question: PCR purpose?

 A) Incorrect
 B) Correct biology principle – correct
 C) Incorrect – wrong concept
 D) Incorrect – misconception

Correct Answer: B

Detailed Explained Rationale: B correct – PCR polymerase chain reaction amplifies DNA
exponentially using primers, Taq polymerase, thermal cycles.