arrow
arrow
arrow
What makes DNA the most abundant genetic material?
Question

What makes DNA the most abundant genetic material?

A.

Its high mutation rate

B.

Its stable double-helical structure

C.

Its enzymatic roles

D.

Its interaction with proteins

Correct option is B

The correct answer is: (B) Its stable double-helical structure

Explanation:

  • The double-helix structure of DNA is what makes it stable and reliable as a medium for storing genetic information. This stable structure allows DNA to be passed on accurately during cell division, ensuring the persistence of genetic information across generations.
  • The structure consists of two complementary strands of nucleotides twisted into a helix, providing resistance to damage and allowing for effective replication and transcription. This stability contributes to DNA's abundance as the primary genetic material in most organisms.

Information Booster:

  • DNA's stability is key to its role in inheritance. The double-helical structure helps protect the genetic material from external damage and allows for repair mechanisms to fix any errors or damage.
  • RNA, though involved in genetic processes, is less stable and more prone to degradation than DNA, making DNA the preferred medium for long-term genetic storage.

Additional Information:

  • Its high mutation rate: Incorrect. A high mutation rate would actually be detrimental to genetic stability, not an advantage for genetic material.
  • Its enzymatic roles: Incorrect. DNA does not have enzymatic roles. Proteins like enzymes are responsible for many cellular functions, not DNA itself.
  • Its interaction with proteins: Incorrect. While DNA interacts with proteins (e.g., histones in chromosomes), this interaction is more about regulation and packaging, not the reason for its abundance.

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RRB NTPC’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
353k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow