This quiz works best with JavaScript enabled. Home > Biology > Molecular Biology – Quiz 54 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 54 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is NOT a polysaccharide? A) Starch. B) Amylopectin. C) Cellulose. D) Lactose. Show Answer Correct Answer: D) Lactose. 2. Which best describes stem cells? A) Stem cells can only come from embryos. B) Stem cells can only come from adult bone marrow. C) Stem cells do not ever change. D) Stem cells can develop into different specialized cells. Show Answer Correct Answer: D) Stem cells can develop into different specialized cells. 3. What pairs with adenine in the DNA? A) Thymine. B) Uracil. C) Guanine. D) Cytosine. Show Answer Correct Answer: A) Thymine. 4. Which of the following is false about denaturation? A) Disruption of hydrogen bonds. B) Disruption of phosphodiester linkage. C) Loss of helical structure of DNA. D) It is resulted as a result of change in pH or increase in temperature. Show Answer Correct Answer: B) Disruption of phosphodiester linkage. 5. How does the amount of energy resulting from fermentation compare with that of aerobic respiration? A) Aerobic respiration results in less energy. B) Aerobic respiration results in more energy. C) Each process results in equal amounts energy. D) Each process results in variable amounts of energy. Show Answer Correct Answer: B) Aerobic respiration results in more energy. 6. Griffith worked with A) Bacteriophages. B) Drosophilia. C) Frog eggs. D) Streptococcus. Show Answer Correct Answer: D) Streptococcus. 7. Which carries amino acids to the site of protein synthesis? A) MRNA. B) RRNA. C) TRNA. D) NRNA. Show Answer Correct Answer: C) TRNA. 8. Protein synthesis takes place in two parts: A) Transcription then translation. B) Replication then transcription. C) Translation then transcription. D) Replication then translation. Show Answer Correct Answer: A) Transcription then translation. 9. Taq DNA polymerase could be used to A) Identify the DNA of a person at a crime scene. B) Remove a portion of a DNA sample for testing. C) Initiate transcription in a cell. D) Produce multiple copies of a segment of DNA in laboratory conditions. Show Answer Correct Answer: D) Produce multiple copies of a segment of DNA in laboratory conditions. 10. A tool bacteria use to cut invading viral DNA A) Restriction endonucleases. B) Actual scissors. C) Bacteriophages. D) None of above. Show Answer Correct Answer: A) Restriction endonucleases. 11. How much energy is stored in 1kg of body fat compared to 1kg of glycogen A) Same amount. B) Twice as much. C) One sixty fourth as much. D) One tenth as much. Show Answer Correct Answer: B) Twice as much. 12. What is the process of making an mRNA from DNA template? A) Replication. B) Transcription. C) Translation. D) None of above. Show Answer Correct Answer: B) Transcription. 13. The carrier protein that help to transport activated fatty acid to the inner mitochondria is A) Coated vesicle. B) Carnitine. C) Cadherin. D) None of above. Show Answer Correct Answer: B) Carnitine. 14. Where does transcription occur? A) On a ribosome. B) In the nucleus. C) In the cytoplasm. D) On the mitochondria. Show Answer Correct Answer: B) In the nucleus. 15. Hydrogen atoms at a double bond are on the same side A) Hydrolysis. B) Cis. C) Trans. D) Glycogen. Show Answer Correct Answer: B) Cis. 16. What is the name for when the info in a gene is turned into RNA? A) Translation. B) Replication. C) Transcription. D) Duplication. Show Answer Correct Answer: C) Transcription. 17. Which is true about plasmids? A) Plasmids can be cut at specific sequences called restriction sites. B) Plasmids contain a promoter sequence that defines where transcription begins. C) Plasmids can contain an antibiotic resistance gene. D) All of the statements are true about plasmids. Show Answer Correct Answer: D) All of the statements are true about plasmids. 18. Which biomolecule is also known as enzymes? A) Carbohydrate. B) Lipid. C) Nucleic Acid. D) Protein. Show Answer Correct Answer: D) Protein. 19. What is the definition of transcription? A) Synthesis of cDNA molecule with a base complementary to DNA. B) Synthesis of DNA molecule with a base complementary to DNA. C) Synthesis of RNA molecule with a base complementary to DNA. D) Synthesis of protein molecular with a base complementary to RNA. Show Answer Correct Answer: C) Synthesis of RNA molecule with a base complementary to DNA. 20. In which way does RNA differ from DNA? A) RNA is double stranded. B) RNA is single stranded. C) RNA is found only in the nucleus. D) RNA contains nitrogenous bases. Show Answer Correct Answer: B) RNA is single stranded. ← PreviousNext →Related QuizzesMolecular Biology Quiz 1Molecular Biology Quiz 2Molecular Biology Quiz 3Molecular Biology Quiz 4Molecular Biology Quiz 5Molecular Biology Quiz 6Molecular Biology Quiz 7Molecular Biology Quiz 8Molecular Biology Quiz 9Molecular Biology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books