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Questions and Answers
What is the correct order of events that occur immediately after acetylcholine binds to postsynaptic receptors of a muscle fibre, causing the muscle to contract?
What is the correct order of events that occur immediately after acetylcholine binds to postsynaptic receptors of a muscle fibre, causing the muscle to contract?
- 2 - 1 - 3 (correct)
- 2 - 3 - 1
- 3 - 2 - 1
- 1 - 2 - 3
What percentage of the three base codons that can be made using the standard genetic code are stop codons?
What percentage of the three base codons that can be made using the standard genetic code are stop codons?
- 9.4%
- 7.8%
- 4.7%
- 14.1% (correct)
What is the characteristic of prokaryotic DNA?
What is the characteristic of prokaryotic DNA?
- Circular chromosomes located within the cytoplasm (correct)
- Associated with histone proteins and undergoes meiotic cell division during replication
- Linear, with multiple chromosomes contained within a nuclear membrane
- Highly condensed and organized into chromatin fibers
In a DNA molecule with 12 phosphates and 2 adenines, how many purine bases are present?
In a DNA molecule with 12 phosphates and 2 adenines, how many purine bases are present?
Which of the following statements accurately describes the surface area-to-volume ratio and cell growth?
Which of the following statements accurately describes the surface area-to-volume ratio and cell growth?
What is the primary function of acetylcholine in muscle contraction?
What is the primary function of acetylcholine in muscle contraction?
What is the significance of stop codons in protein synthesis?
What is the significance of stop codons in protein synthesis?
What is the characteristic of prokaryotic DNA organization?
What is the characteristic of prokaryotic DNA organization?
In a DNA molecule, what is the relationship between phosphates and deoxyribose sugars?
In a DNA molecule, what is the relationship between phosphates and deoxyribose sugars?
What is the consequence of an increased surface area-to-volume ratio on cell growth?
What is the consequence of an increased surface area-to-volume ratio on cell growth?
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