Which type of rna is involved in the process of transcription
The correct answer and explanation is:
The type of RNA involved in the process of transcription is messenger RNA (mRNA).
Explanation:
Transcription is the first step in the process of gene expression, where an RNA molecule is synthesized from a DNA template. During transcription, mRNA is produced by copying the genetic information encoded in a gene in the DNA. This mRNA then serves as a template for protein synthesis during translation.
The process of transcription begins when an enzyme called RNA polymerase binds to a specific region of the DNA called the promoter. The RNA polymerase unwinds the double helix of the DNA and begins synthesizing a complementary strand of RNA based on the nucleotide sequence of the DNA template strand. This RNA strand is constructed by linking RNA nucleotides (adenine, uracil, cytosine, and guanine) together. However, in RNA, uracil (U) replaces thymine (T), which is found in DNA.
As transcription proceeds, the RNA polymerase moves along the DNA, elongating the mRNA strand. The mRNA strand grows until RNA polymerase reaches a termination signal, which causes it to stop transcribing and release the newly formed mRNA molecule. This mRNA molecule is now a copy of the gene that it was transcribing, and it will carry the genetic information out of the nucleus to the ribosomes, where it will be translated into a protein.
In eukaryotes, mRNA undergoes several modifications after transcription. These include the addition of a 5′ cap, a poly-A tail, and splicing to remove introns, ensuring that only the exons (coding regions) are included in the final mRNA. After these modifications, the mRNA is ready to leave the nucleus and enter the cytoplasm to begin translation.
Thus, mRNA is the type of RNA directly involved in the transcription process.