Which of the following organization levels is
the least inclusive?
a. population
b. community
c. cell
d. atom
e. molecule
D
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cDNA
a. does not contain introns. b. is produced from mRNA. c. production utilizes reverse transcriptase. d. begins as a hybrid molecule with an mRNA. e. fits all of these descriptions.
The early report that Stanley Miller had created "Life in a Test Tube" in his experiment to re-create chemical conditions on Earth before life arose was correct.
a. true b. false
What is the difference between mitochondria and chloroplasts?
A. Mitochondria have linear strands of DNA and chloroplasts have rings of DNA. B. Mitochondria produce oxygen and chloroplasts produce carbon dioxide. C. Mitochondria have three membranes and chloroplasts have two membranes. D. Mitochondria are oxidative metabolic bacteria derivatives and chloroplasts are photosynthetic bacteria derivatives.
What is the key concept addressed by the question?
What will be an ideal response?