1. How to stable the end length of chromosome?
(A) Topmere
(B) Endmere
(C) Telomere
(D) Centromere
(E) Bottomere

37. Indicate which path a cell generally uses to degrade plasma membrane associated receptors? (1) Plasma membrane (2) Early endosome (3) Recycling endosome (4) Late endosome (5) Lysosome (A) (1)＞(2)＞(3)＞(4) (B) (1)＞(3)＞(4)＞(5) (C) (1)＞(2)＞(4)＞(5) (D) (1)＞(4)＞(2)＞(5) Ε. (1)＞(4)＞(3)＞(5)

38. Indicate which cellular machines participate in degrading damaged "intracellular proteins"? (1). Autophagosome (2). ER (3). Golgi (4). Endosome (5). Proteasome (A) (1), (2) (B)(2), (3) (C) (3), (4) (D) (4), (5) (Ε) (1), (5)

39. Indicate what are the functions of multivesicular body? (1). Protein synthesis (2). Protein phosphorylation (3). Protein transport (4). Protein secretion (5). RNA degradation (A) (1), (2) (B) (2), (3) (C) (3), (4) (D) (4), (5) (E) (1), (5)

40. Indicate which order is correct when an actin potential propagates? (1) voltage-gated sodium channel is opened (2). voltage-gated sodium channel is closed (3). voltage-gated calcium channel is opened (4). voltage-gated calcium channel is closed (5). voltage-gated potassium channel is opened (6). voltage-gated potassium channel is closed (A) (1)＞(2)＞(3)＞(4) (B) (1)＞(5)＞(2)＞(6) (C) (1)＞(3)＞(4)＞(6) (D) (2)＞(3)＞(4)＞(6) (E) (1)＞(3)＞(5)＞(6)

2. What is the coding strand? (A) The DNA strand whose base sequence corresponds to the base sequence of the RNA transcript produced (B) The RNA strand whose base sequence corresponds to the base sequence of the RNA transcript produced (C) The DNA strand whose base sequence complements to the base sequence of the RNA transcript produced (D) The DNA strand whose base sequence complements to the base sequence of the RNA transcript produced (E) The cDNA strand whose base sequence complements to the base sequence of the RNA transcript produced

3. Prion is composite of what macromolecule(s)? (A) RNA (B) DNA (C) cDNA (D) Protein (E) Lipid

4. In a eukaryotic cell, when or where is the packing ratio of DNA being the highest? (A) DNA replication (B) Mitosis (C) Apoptosis (D) Euchromatin region (E) RNA transcription initiation

5. The features of a plasmid expression vector usually not including _____? (A) Replication origin (B) Antibiotic resistance gene (C) Multiple cloning site (D) Promoter (E) Telomere ?

6. In animal cells, which of the following organelles contains genetic material in addition to nucleus? (A) Golgi apparatus (B) Mitochondrion (C) Chloroplast (D) Endoplasmic reticulum (E) Lysosome

7. Which of the statements about nucleus is NOT CORRECT? (A) Structures as a double-membrane compartment (B) Containing bulk of genome (C) RNA transcription (D) DNA maintenance (E) Exosome secretion