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Multiple Choice
Which of the following statements is true about the products of DNA transcription?
A
They are single-stranded DNA molecules identical to the coding strand.
B
They are single-stranded RNA molecules complementary to the DNA template strand.
C
They are proteins synthesized directly from the DNA template.
D
They are double-stranded DNA molecules identical to the original DNA.
Verified step by step guidance
1
Understand the process of DNA transcription: DNA transcription is the synthesis of RNA from a DNA template. This process occurs in the nucleus of eukaryotic cells and involves the enzyme RNA polymerase.
Identify the role of the DNA strands: DNA has two strands, the coding strand and the template strand. The template strand is used by RNA polymerase to synthesize RNA, while the coding strand has the same sequence as the RNA (except thymine is replaced by uracil in RNA).
Recognize the product of transcription: The product of transcription is a single-stranded RNA molecule. This RNA is complementary to the DNA template strand and has a sequence similar to the coding strand, with uracil (U) replacing thymine (T).
Eliminate incorrect options: Proteins are not synthesized directly from DNA; they are synthesized from RNA during translation. Transcription does not produce double-stranded DNA molecules or single-stranded DNA molecules identical to the coding strand.
Select the correct statement: Based on the understanding of transcription, the correct statement is 'They are single-stranded RNA molecules complementary to the DNA template strand.'