1. In which stage of mitosis cell division does daughter chromosomes move toward polar region from equator region?
A. TelophaseB. MetaphaseC. AnaphaseD. Prophase
2. What is called to the time between first and second division of nucleus in meiosis process?
A. KaryokinesisB. Mitokinesis-2C. InterkinesisD. Intrakinesis
3. For a p-n junction, electricity change has been observed for potential difference. What is the resistance of that junction? 5 mA 0.2 V
A. 40 ΩB. 50 ΩC. 10 ΩD. 45 Ω R = E I = 40Ω
4. If both pH and pOH of water are 7.0 at, which of the following relations is correct at higher temperatures? 25∘C
A. ; pH < 7.0 pOH < 7.0B. ; pH < 7.0 pOH > 7.0C. ; pH > 7.0 pOH < 7.0D. ; pH > 7.0 pOH > 7.0 Kw [H +] [OH −] Kw pH + pOH = 14 25℃ pH + pOH < 14
5. How many lobes are there in the right lung of human?
A. Three lobesB. Two lobesC. Eight lobesD. Ten lobes
6. Which one of the following is the most stable carbocation?
A. ⊕CH3B. (CH3)2 ⊕CHC. H2C⊕CH3D. (CH3)3C ⊕ 3∘ > 2∘ > 1∘ > H3C +