DNA fingerprinting refers to

Options

A. Techniques used for the identification of fingerprints of individuals
B. Molecular analysis of profiles of DNA samples
C. Analysis of DNA samples using imprinting devices
D. Techniques used for molecular analysis of different specimens of DNA

Answer

**Step-by-Step Solution:**

1. **Understanding DNA Fingerprinting**:
- DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles. It involves analyzing specific regions of DNA that vary among individuals.

2. **Definition**:
- The term "DNA fingerprinting" refers to the molecular analysis of DNA samples to create a profile that can be used for identification purposes.

3. **Key Components**:
- DNA (deoxyribonucleic acid) is the genetic material that carries the information necessary for the growth, development, and functioning of living organisms.
- The technique primarily focuses on short nucleotide repeats known as Variable Number of Tandem Repeats (VNTRs), which are crucial for distinguishing between different individuals.

4. **Molecular Analysis**:
- The analysis involves examining the molecular structure of DNA, specifically looking at the sequence and arrangement of nitrogenous bases that make up the DNA.

5. **Historical Context**:
- DNA fingerprinting was first developed by Alec Jeffreys in 1985 in England. His work laid the foundation for forensic science and paternity testing.

6. **Correct Answer Identification**:
- Among the options provided, the correct definition of DNA fingerprinting is "molecular analysis of the profiles of DNA samples." This option accurately reflects the nature of DNA fingerprinting.

7. **Eliminating Incorrect Options**:
- Other options such as "techniques used for the identification of the fingerprints of individuals" and "analysis of DNA samples using imprinting devices" are incorrect because they do not accurately describe the process or the tools used in DNA fingerprinting.