Which one of following pairs is correctly matched?

Options

A. RNA polymerase-RNA primer
B. Okazaki fragements-Splicing
C. Restriction enzymes-Genetic Engineering
D. Central Dogma-codon

Answer

To determine which of the following pairs is correctly matched, we will analyze each option provided:

1. **RNA polymerase and RNA primer**:
- RNA polymerase is an enzyme that synthesizes RNA from a DNA template during transcription.
- RNA primers, on the other hand, are short RNA sequences synthesized by the enzyme primase, which are necessary for DNA replication to provide a starting point for DNA polymerase.
- Therefore, this pair is incorrectly matched.

2. **Okazaki fragments and splicing**:
- Okazaki fragments are short segments of DNA that are synthesized on the lagging strand during DNA replication.
- Splicing refers to the process of removing introns (non-coding regions) from pre-mRNA to produce mature mRNA.
- Since Okazaki fragments are related to DNA replication and splicing is related to mRNA processing, this pair is also incorrectly matched.

3. **Restriction enzyme and genetic engineering**:
- Restriction enzymes are proteins that cut DNA at specific sequences, acting like molecular scissors.
- They are fundamental tools in genetic engineering, allowing scientists to manipulate DNA for various applications, including cloning and recombinant DNA technology.
- Therefore, this pair is correctly matched.

4. **Central dogma and codon**:
- The central dogma of molecular biology describes the flow of genetic information from DNA to RNA (transcription) and from RNA to protein (translation).
- Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids during protein synthesis.
- While codons are involved in the central dogma, the central dogma itself is a broader concept and not directly matched with codons. Thus, this pair is incorrectly matched.

**Conclusion**: The only correctly matched pair is **restriction enzyme and genetic engineering**.