DNA to mRNA is called as
**Core Concept**
The process of converting DNA to mRNA is a fundamental concept in molecular biology, involving the transcription of genetic information from DNA to a complementary RNA molecule. This process is crucial for protein synthesis and gene expression.
**Why the Correct Answer is Right**
Transcription is the process by which a DNA sequence is copied into a complementary RNA molecule. This process is initiated by the binding of RNA polymerase to a specific DNA sequence, known as a promoter. The enzyme then unwinds the DNA double helix and synthesizes a complementary RNA strand by matching the incoming nucleotides to the base pairing rules (A-T and G-C). This results in a single-stranded RNA molecule that is complementary to the original DNA template.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the correct answer, as it does not describe a process related to DNA to mRNA conversion.
**Option B:** This option is incorrect because it describes the process of translation, which is the conversion of mRNA to a protein, rather than the conversion of DNA to mRNA.
**Option C:** This option is incorrect because it describes the process of DNA replication, which is the duplication of the DNA molecule during cell division, rather than the conversion of DNA to mRNA.
**Clinical Pearl / High-Yield Fact**
A key aspect of transcription is the concept of gene regulation, where various mechanisms, such as transcription factors and enhancers, control the rate and efficiency of transcription. Understanding these mechanisms is crucial for understanding gene expression and its role in disease.
**Correct Answer: C. Transcription. Transcription is the process by which a DNA sequence is copied into a complementary RNA molecule.**