Question

DNA fingerprinting is based on the presence in DNA of:

• A. Constant number of tandem repeats
• B. Non-repetitive sequences in each DNA
• C. Variable number of tandem repeats
• D. Introns in eukaryotic DNA

Hint:

VNTRs: Variable Number of Tandem Repeats.
Also called minisatellites.
Used in forensic identification.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
DNA fingerprinting is used for identification.
It relies on specific DNA sequences.

Step 2: Key Formula or Approach:
No specific formula.
Need to understand the basis of DNA fingerprinting.

Step 3: Detailed Explanation:
DNA fingerprinting is based on Variable Number of Tandem Repeats (VNTRs).
These are regions of DNA where short sequences are repeated.
The number of repeats varies among individuals.
This variation creates unique patterns.
Thus, VNTRs are the basis of DNA fingerprinting.

Step 4: Final Answer:
DNA fingerprinting is based on Variable Number of Tandem Repeats.
Hence, the correct option is (C).