Question

Transcription is the process by which a DNA template is used for the manufacture of several different types of RNA.-----------

Answer 1

Transcription is the process by which an RNA molecule is synthesized using a DNA template. It involves the synthesis of messenger RNA (mRNA) from a gene within the DNA. This process is crucial for protein synthesis and gene expression.

Step-by-step explanation:

Transcription is the process by which an RNA molecule is synthesized using a DNA template. It is the first step of protein synthesis and is responsible for converting the genetic information in DNA into a usable form, RNA.

During transcription, only a part of the DNA strand called a gene is transcribed. This gene contains the instructions for making a specific protein. The enzyme RNA polymerase binds to the gene and synthesizes a complementary RNA molecule, using the base pairing rules. The resulting RNA molecule, called messenger RNA (mRNA), carries the genetic information from the nucleus to the ribosomes, where it is translated into a protein.

Overall, transcription plays a crucial role in gene expression and is an essential biological process.

Answer 2

Transcription is the enzymatic synthesis of RNA from a DNA template involving steps of initiation, elongation, and termination. It is orchestrated by RNA Polymerase and results in the creation of mRNA which carries genetic information for protein synthesis.

Step-by-step explanation:

Understanding Transcription in Molecular Biology

Transcription is a critical biological process utilized in the manufacture of RNA, where a DNA template is used to synthesize various types of RNA, such as messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

This process occurs within the nucleus of the cell and is initiated by the enzyme RNA Polymerase, which unwinds the DNA helix and starts transcribing a complementary RNA strand, using one of the DNA strands as a template. Transcription allows genetic information stored in DNA to be transferred to mRNA, which then serves as a blueprint for protein production during translation.

The process involves three main steps: initiation, where RNA polymerase binds to a promoter sequence; elongation, where the RNA strand is extended; and termination, where the transcription ends and the RNA molecule is released. Importantly, transcription is regulated, ensuring that only the necessary genes are expressed at any given time.

The synthesized RNA molecule, specifically mRNA, then exits the nucleus to participate in the next stage of the Central Dogma of molecular biology, namely translation, which synthesizes proteins according to the genetic code carried by the mRNA.