Which of the following is characteristic of eukaryotic cells?
A) binary fission
B) membrane-bounded nucleus
C) peptidoglycan cell wall
D) 70S ribosomes
E) smaller than 5 µm in diameter
Answer: B
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Which of the following processes is not a part of metagenomic analysis of an environment?
A. Polymerase chain reaction B. Extraction of DNA from original sample C. DNA sequence assembly D. Reverse transcription E. High-throughput sequencing
The first organisms to release oxygen by photosynthesis were:a
gymnosperms. b. green sulfur bacteria. c. algae. d. flowering plants. e. cyanobacteria.
Mollusks and arthropods have closed circulatory systems.
Answer the following statement true (T) or false (F)
What is the driving force of energy production in steps 6 and 7?
a. The reduction of three-carbon compounds b. The reduction of NAD+ to NADH c. The oxidation of three-carbon compounds e. The energy potential of a proton gradient