5. What will be the amino acid carried by a tRNA whose anticodon sequence is 5’-CAU-3’ ? (AUG: Met; CAU: His; UAC: Tyr; GUA: Val; CGU: Arg)
(A) Met
(B) His
(C) Tyr
(D) Val
(E) Arg

1. Which of the following belongs to paracrine? ① prostaglandin ② NO③ cytokine ④ glucagon ⑤ melatonin (A) ③④(B)③⑤ (C) ①②③ (D) ③④⑤ (E)①③⑤

2. Microsatellites DNA is various number of short nucleotide repeat presence in our genomic DNA. If John’s father has microsatellites of 9 repeats and 6 repeats, his mother has 6 repeats and 5 repeats. What could be the combination of microsattelites in John’s genomic DNA? ① 9 repeats and 6 repeats ② 15 repeats and 12 repeats ③6 repeats and 6 repeats ④ 9 repeats and 5 repeats ⑤12 repeats and 14 repeats (A) ①② (B) ①③④ (C) ②④ (D) ③ ④ ⑤ (E) ④ ⑤

3. What control the heart rate? (A) medulla oblongata (B) neocortex (C) pituitary (D) cerebellum (E) thalamus

4. What is the logical treatment to make a seed break dormancy? (A) IAA (B) CO2 (C) DTT (D) gibberellins (E) ascorbic acid

6. Which of the following statement is NOT correct about immunoglobulin producing B cells? (A) B cell does not express its immunoglobulin gene unless primed by antigen. (B) B cells rearrange their immunoglobulin gene during their development. (C) The VDJ rearrangement creates the diversity of immunoglobulin produced by B cells. (D) Somatic mutation of immunoglobulin gene is one way to produce high affinity antibody. (E) B cell anergy is one way to induce tolerance.

7. Huntington disease (HD) is inherited dominantly. If homozygote patient of HD is about 4% in a population, what will be the percentage of normal individuals in this population? (A) 96% (B) 81% (C) 64% (D) 49% (E) 20%

8. In plant leave, products of photosynthesis is collected in which of the following leave cells? (A) collecting cell (B) transfer cell (C) tracheid (D) boundle sheath cell (E) endodermal cell

9. Which of the following ion channel causes the reflectory period when neuron cannot response to another stimulus shortly after an action potential? (A) sodium ion channel (B) potassium ion channel (C) proton channel (D) chloride channel (E) calcium ion channel

10. Glucose in human hepatocyte can be synthesized from which combination of the following non-sugar sources? ①  adenine ②  alanine ③ lactate  ④  palmitate⑤glycerol (A) ① ② ③ (B)①④ (C) ② ③ ④ ⑤ (D) ④ ⑤(E) ② ③⑤

11. Acne is caused by infection of the sebaceous glands by Propionibacterium acne, which is Gram-positive bacterium whose cell wall composed of which of the following? (A) thick lipopolysaccharide layer (B) thick peptidoglycan layer (C) thin lipopolysaccharide layer over a thick peptidoglycan layer (D) thick lipopolysaccharide layer over a thin peptidoglycan layer (E) thick lipopolysaccharide layer over a thick peptidoglycan layer