Plasmids, prokaryotic chromosomes and eukaryotic chromosomes
A - VCE - SSCE Biology - Question 2 - 2011 - Paper 1
Question 2
Plasmids, prokaryotic chromosomes and eukaryotic chromosomes
A. are all circular in shape.
B. all replicate during mitosis.
C. are all composed of histone protein... show full transcript
Worked Solution & Example Answer:Plasmids, prokaryotic chromosomes and eukaryotic chromosomes
A - VCE - SSCE Biology - Question 2 - 2011 - Paper 1
Step 1
A. are all circular in shape.
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Answer
This statement is false. While plasmids and prokaryotic chromosomes are typically circular, eukaryotic chromosomes are linear.
Step 2
B. all replicate during mitosis.
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Answer
This statement is false. Only eukaryotic chromosomes replicate during mitosis; plasmids and prokaryotic chromosomes replicate independently of mitosis.
Step 3
C. are all composed of histone proteins.
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Answer
This statement is false. Eukaryotic chromosomes are composed of DNA wrapped around histone proteins, but prokaryotic chromosomes and plasmids do not contain histones.
Step 4
D. are all made out of double-stranded DNA.
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Answer
This statement is true. All plasmids, prokaryotic chromosomes, and eukaryotic chromosomes are made up of double-stranded DNA.
