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Multiple Choice
During transcription, when genes are copied, which molecule is synthesized from the DNA template?
A
Messenger RNA (mRNA)
B
Ribosomal RNA (rRNA)
C
Transfer RNA (tRNA)
D
Deoxyribonucleic acid (DNA)
Verified step by step guidance
1
Understand the process of transcription: Transcription is the process by which the genetic information in DNA is copied into a complementary RNA molecule. This occurs in the nucleus of eukaryotic cells.
Identify the role of RNA polymerase: RNA polymerase is the enzyme responsible for synthesizing RNA from the DNA template. It binds to the promoter region of the gene and unwinds the DNA strands.
Determine the type of RNA synthesized: During transcription, the primary RNA molecule synthesized is messenger RNA (mRNA). mRNA carries the genetic code from DNA to the ribosome for protein synthesis.
Differentiate between other types of RNA: Ribosomal RNA (rRNA) and transfer RNA (tRNA) are also important for protein synthesis, but they are not directly synthesized during transcription of a gene. They are transcribed from specific DNA regions but serve different functions.
Exclude DNA as a product: DNA is the template for transcription, not the product. The synthesized molecule is RNA, specifically mRNA in this context.