21. The two principal contractile proteins found in skeletal muscle are: A. Actin and troponin B. Actin and myosin C. Troponin and tropomyosin D. Myosin and tropomyosin Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
22. The blue colonies contained A. Plasmid only B. Foreign DNA only C. Both A and B D. None of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
23. Which of the following is a false term? A. Repetitive DNA B. Beautiful DNA C. Unique DNA D. Promiscous DNA Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
24. Which one of the following media components is used to maintain pH in mammalian cell culture? A. CaCh B. MgSO C. NaCl D. NaHCO3 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
25. Which of the following would be used to study which genes are transcribed in a particular cell line? A. Gene expression profiling B. DNA variation screening C. Microarray comparative genomic hybridization D. Transcription-mediated amplification Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
26. A heterologous protein for its expression in the milk of a transgenic animal should be under the control of the promoter of the gene coding for A. β-globin B. β-lactoglobulin C. Preproinsulin D. lacZ Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
27. A multicellular organism that carries a specific genetic change in each cell bacause of an intervention at the fertilized egg stage is a A. Transversion B. Transition C. Transgenic D. Transformation Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
28. The synthesis of glucose from lactate, glycerol, or amino acids is called A. Glycogenolysis B. Glycolysis C. Lipolysis D. Gluconeogenesis Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
29. Cells that leave a tumor and spread through out the body forming tumors at distant sites are called A. Sarcomas B. Metastases C. Carcinomas D. Lymphomas Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
30. The number of replicons in a typical mammalian cell is A. 40 - 200 B. 400 C. 1000 - 2000 D. 50,000 - 100,000 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
