정답이 있는 간호학 입학 시험 대비 생물학 학습지

What are cilia?

1. ASmall round sacs that hold digestive enzymes
2. BShort hair-like projections that beat in waves
3. COpenings in the nuclear envelope
4. DFolds of the inner mitochondrial membrane that make ATP

우성 대립유전자에 대해 옳은 설명은 무엇인가요?

1. A한 개만 있어도 그 효과가 나타난다
2. B표현형에 절대 나타나지 않는다
3. C항상 어머니에게서 물려받는다
4. D두 개가 있을 때만 그 효과가 나타난다

What does gel electrophoresis separate?

1. ADNA fragments by size
2. BBlood into plasma and cells
3. CChromosomes by their colour
4. DCells by their shape

Golden rice was genetically modified to make beta-carotene. What is the aim?

1. ATo make the rice grow faster in cold climates
2. BTo help prevent vitamin A deficiency
3. CTo make the rice resistant to all insects
4. DTo increase the protein content of the rice

What is the job of the checkpoints in the cell cycle?

1. ATo join the two daughter cells back together
2. BTo stop the cycle if the DNA is damaged or the cell is not ready
3. CTo copy the DNA a second time before mitosis
4. DTo speed up division whenever the cell is short of nutrients or space

A person catches chickenpox once and does not usually become ill with it again. Why?

1. AThe virus stays in the blood and kills new viruses
2. BThe skin becomes thicker after the first infection
3. CMemory cells give a faster, stronger response the next time
4. DAntibodies from the first infection turn into new viruses

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ACompetitive inhibition
2. BNoncompetitive inhibition
3. CSubstrate saturation
4. DDenaturation by heat

Why does the influenza vaccine need to be updated most years?

1. AAntibodies cannot be made against viruses
2. BThe vaccine damages the immune system after one year, so it must be repeated
3. CThe virus keeps changing its surface proteins through mutation
4. DInfluenza is caused by a different bacterium each year