BIOS 242 Test Bank 2026 week 3 | Real Exam Questions & Accurate Answers | Level 3 Ready

BIOS242 Week 3 Exam 1




Question: Some viruses exist in a chronic ________ state in which they are occasionally
reactivated and cause signs and symptoms.

Choices:

• A. Intermittent
• B. Latent
• C. Active
• D. Unstable



Correct Answer: B. Latent

,Question: ________ are pieces of extrachromosomal DNA that can replicate independently.

Choices:

• A. Pili
• B. Fimbriae
• C. Flagella
• D. Plasmids



Correct Answer: D. Plasmids

,Question: The scientist who established the foundation of taxonomy is:

Choices:

• A. Antonie van Leeuwenhoek
• B. Ignaz Semmelweis
• C. Carl von Linné
• D. Joseph Lister



Correct Answer: C. Carl von Linné

, Question: Ionizing radiation induces mutations in DNA by:

Choices:

• A. removing amine groups from some bases
• B. cross-linking adjacent pyrimidines
• C. forming charged molecules that cause breaks in DNA
• D. causing frameshifts due to the insertion of nucleotides



Correct Answer: C. forming charged molecules that cause breaks in DNA