In prokaryotic organisms
A - VCE - SSCE Biology - Question 2 - 2006 - Paper 1
Question 2
In prokaryotic organisms
A. translation occurs at the ribosome.
B. transcription occurs in the nucleus.
C. chromosomes are usually linear.
D. DNA is only found in p... show full transcript
Worked Solution & Example Answer:In prokaryotic organisms
A - VCE - SSCE Biology - Question 2 - 2006 - Paper 1
Step 1
B. transcription occurs in the nucleus.
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Answer
In prokaryotic organisms, transcription does not occur in the nucleus; this is a feature of eukaryotic cells where the nucleus houses the chromosome. In prokaryotes, transcription occurs in the cytoplasm, concurrently with translation. Therefore, option B is incorrect.
Step 2
A. translation occurs at the ribosome.
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Answer
Translation in prokaryotic organisms occurs at ribosomes found in the cytoplasm. This statement is true, as the ribosomes synthesize proteins using messenger RNA (mRNA). Thus, option A is a correct statement.
Step 3
C. chromosomes are usually linear.
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Answer
Prokaryotic organisms typically have a single, circular chromosome rather than linear chromosomes, which are characteristic of eukaryotes. Therefore, this statement is incorrect, making option C false.
Step 4
D. DNA is only found in plasmids.
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Answer
In prokaryotic organisms, DNA is not only found in plasmids but also in a main chromosomal form. Plasmids are additional DNA elements, often circular, that can exist independently. Hence, this statement is also false, making option D incorrect.
