25. Which of the following RNAs works in RNA splicing?(A) rRNA (B) tRNA (C) snRNA (D) miRNA (E) mRNA
26. _____ is NOT a second messenger.(A) Ca2+ (B) Nitric oxide (C) Phosphatidylinositol 4, 5-bisphosp
27. Which of the following statements is FALSE?(A) The sex determined in most ants and bees is by th
28. Which of the following functional groups participate in chromatin-mediated gene expression?(A) O
29. The eukaryotic DNA replication does NOT contain(A) ligase (B) DNA polymerase (C) helicase (D) to
30. Which of the following statements about signal transduction is FALSE ?(A) Signal transduction on
31. Which of the following statements is FALSE?(A) The cells of the mucous membrane lining human air
33. Which of the following statements regarding the nervous system is FALSE?(A) Schwann cell is also
34. Which of the following statements about circulatory systems is FALSE?(A) Arthropods and earthwor
35. In eukaryotic cells, 5S rRNA gene is transcribed by _____.(A) RNA polymerase I (B) RNA polymeras
36. ________ is produced in the roots of plants. It promotes cell division and growth, and retards t
37. Which of the following statements regarding cytoskeleton is true?(A) The subunit of microfilamen
38. Trace elements are those required by an organism in only minute quantities. Which of the followi
39. Which is a functional group that helps stabilize proteins by forming covalent cross-links within
40. Which of the following is (are) the mechanism(s) of epigenetic varivations?(A) histone acetylati
41. The process by which unrelated organisms with similar environment demands evolve superficially s
42. On a daily basis, the amount of urine produced is approximately ___ of the amount of filtrate.(A
44. Breathing rate increases because of(A) insufficient oxygen in the blood (B) excess carbon dioxid
45. Which of the following vitamins is incorrectly associated with its use?(A) vitamin B2: component
46. Which of the following areas of study examines energy flow and chemical cycling between organism