Biology 252 Exam II 2025/2026 A Complete Question And Answer Full Exam| VERIFIED EXAM
1. **What is the central dogma of molecular biology?**
- A. DNA is transcribed into RNA, which is translated into proteins.
- B. RNA is transcribed into DNA, which is translated into proteins.
- C. Proteins are transcribed into RNA, which is translated into DNA.
- D. Proteins are directly synthesized from DNA.
**Answer:** A. DNA is transcribed into RNA, which is translated into proteins.
2. **What is the function of the mitochondria in a cell?**
- A. Protein synthesis
- B. Energy production
- C. Waste removal
- D. Cellular communication
**Answer:** B. Energy production
3. **Which of the following is NOT a kingdom in the classification system?**
- A. Animalia
- B. Protista
- C. Monera
- D. Phylum
**Answer:** D. Phylum
4. **What is the purpose of mitosis in the cell cycle?**

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