mRNA vaccines work by: MCQ with Answer and Explanation

mRNA vaccines work by:

A. Live virus

B. Toxoid

C. Introducing weakened virus

D. Instructing cells to produce protein

Answer: Option D

They teach cells to make a protein that triggers an immune response.

This question belongs to: Static General Knowledge Science and Technology

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Question #1 Report Error

The first artificial satellite was launched in:

A. 1980

B. 1969

C. 1975

D. 1957

Correct Answer: Option D

Explanation:
Sputnik 1 was launched in 1957.

This question belongs to: Static General Knowledge Science and Technology

Question #2 Report Error

The first antibiotic discovered was:

A. Aspirin

B. Streptomycin

C. Penicillin

D. Tetracycline

Correct Answer: Option C

Explanation:
Penicillin by Alexander Fleming.

This question belongs to: Static General Knowledge Science and Technology

Question #3 Report Error

What is the term used for the ability of machines to learn from data without explicit programming?

A. Virtual Reality

B. Machine Learning

C. Data Mining

D. Cloud Networking

Correct Answer: Option B

Explanation:
Machine learning is a subset of AI that focuses on building systems that learn patterns from data.

This question belongs to: Static General Knowledge Science and Technology