DNA is best defined as which of the following?
Difficulty: Medium
About this MCQ
This Medium Science and Inventions question asks: DNA is best defined as which of the following? The correct choice is A. The molecule that carries genetic instructions in living organisms. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Science and Inventions items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Science and Inventions so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Science and Inventions item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. The molecule that carries genetic instructions in living organisms ✓
- B. The physicist who developed the theory of relativity
Why not B: “The physicist who developed the theory of relativity” does not fit this question. The answer is The molecule that carries genetic instructions in living organisms.
- C. The chemical compound made of two hydrogen atoms and one oxygen atom
Why not C: “The chemical compound made of two hydrogen atoms and one oxygen atom” does not fit this question. The answer is The molecule that carries genetic instructions in living organisms.
- D. The physicist and chemist who conducted pioneering research on radioactivity and won Nobel Prizes in two different sciences
Why not D: “The physicist and chemist who conducted pioneering research on radioactivity and won Nobel Prizes in two different sciences” does not fit this question. The answer is The molecule that carries genetic instructions in living organisms.
Correct answer
A. The molecule that carries genetic instructions in living organisms
Explanation
The molecule that carries genetic instructions in living organisms (option A) is the accepted answer to “DNA is best defined as which of the following”. Option B (The physicist who developed the theory of relativity) does not fit this question. Option C (The chemical compound made of two hydrogen atoms and one oxygen atom) does not fit this question. Option D (The physicist and chemist who conducted pioneering research on radioactivity and won Nobel Prizes in two different sciences) does not fit this question. For this Science and Inventions question, the accepted answer is The molecule that carries genetic instructions in living organisms.
Source: General Knowledge Official Reference Guide
Tags: FPSC, PPSC, General Knowledge, NTS, Science and Inventions
Submitted by: MCQsHub Editorial
Related MCQs
- Which of the following best describes Galileo Galilei?
- Choose the correct description of Photosynthesis.
- What is the name for the astronomer often credited as a key figure in developing the telescope for astronomica...
- Which of the following best names: the force that attracts objects toward the center of the Earth?
- What does The Wright Brothers refer to?
- Identify the correct description of Gravity.