Multiple Choice
Which of the following statements regarding prokaryotic DNA is true?
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7. DNA and Chromosome Structure
DNA as the Genetic Material
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Which of the following is evidence that eukaryotes and prokaryotes share a common ancestor?
A
Only eukaryotes have ribosomes
B
Eukaryotes use RNA instead of DNA for genetic information
C
Both use DNA as their genetic material
D
Prokaryotes lack genetic material
Verified step by step guidance1
Understand the question is asking for evidence that eukaryotes and prokaryotes share a common ancestor, which means looking for a fundamental similarity between the two groups.
Recall that both eukaryotes and prokaryotes have genetic material, but the type and nature of this material is key to their evolutionary relationship.
Evaluate each option: 'Only eukaryotes have ribosomes' is incorrect because both have ribosomes, though they differ in size and complexity.
Consider the option 'Eukaryotes use RNA instead of DNA for genetic information' which is false because both use DNA as their primary genetic material.
Recognize that the correct evidence is 'Both use DNA as their genetic material' since this shared characteristic supports the idea of a common ancestor.
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