In stage I
A - VCE - SSCE Biology - Question 9 - 2007 - Paper 1
Question 9
In stage I
A. step E represents translation.
B. removal of exons occurs at step F.
C. product G is the initial mRNA produced.
D. the enzyme RNA polymerase is active... show full transcript
Worked Solution & Example Answer:In stage I
A - VCE - SSCE Biology - Question 9 - 2007 - Paper 1
Step 1
A. step E represents translation.
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Answer
This statement is incorrect. Step E typically refers to a part of the transcription or processing phases, not translation, which occurs later in the sequence of gene expression.
Step 2
B. removal of exons occurs at step F.
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Answer
This statement is incorrect. Exons are the coding sequences that remain in the mRNA; it is introns that are removed during RNA splicing, which occurs before mRNA translation.
Step 3
C. product G is the initial mRNA produced.
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Answer
This statement is often inaccurate. Typically, product G refers to the spliced mature mRNA, while the initial transcript before splicing is a precursor mRNA known as pre-mRNA.
Step 4
D. the enzyme RNA polymerase is active.
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Answer
This is the correct statement. RNA polymerase is actively involved in synthesizing RNA from a DNA template during the transcription phase.
