B.7A Did Life Come from Outer Space? level 6.7 – Assessment – 04
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B.7A Did Life Come from Outer Space? level 6.7 – Assessment
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Question 1 of 4
1. Question
- According to some scientists RNA molecules were probably formed before DNA molecules. The reason for this statement is because
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Question 2 of 4
2. Question
- The two nucleobases that were detected last were
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Question 3 of 4
3. Question
- The nucleobases of DNA are made up of:
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Question 4 of 4
4. Question
- True or False: Isomers have different chemical formulas but the organization of the components are the same.
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Question 5 of 4
5. Question
- Discuss ways that the scientists are trying to prove that the chemical compounds found in samples of meteorites are not due to contamination from the soil but that they originated in interstellar space.
The answer should include isomers and the recent missions to bring back pristine samples from meteorites.
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