1.쉬움
How does a vaccine protect a person?
- AIt kills all bacteria in the body straight away
- BIt trains the immune system with a harmless form of a pathogen
- CIt blocks the pathogen from entering the nose
- DIt replaces the person's white blood cells with stronger ones
2.쉬움
Which of these hormones is a steroid?
- ATestosterone
- BInsulin
- CGrowth hormone
- DGlucagon
3.쉬움
대조군의 목적은 무엇인가요?
- A처치한 집단과 비교할 기준을 제공하는 것
- B검증하려는 처치를 가능한 한 가장 많이 받는 것
- C가설이 필요 없게 하는 것
- D실험이 더 빨리 끝나게 하는 것
4.보통
Golden rice was genetically modified to make beta-carotene. What is the aim?
- ATo make the rice resistant to all insects
- BTo make the rice grow faster in cold climates
- CTo help prevent vitamin A deficiency
- DTo increase the protein content of the rice
5.보통
When plotting the results of an experiment, which variable usually goes on the y-axis?
- AThe dependent variable
- BThe independent variable
- CThe time the experiment started
- DThe controlled variable
6.보통
In gel electrophoresis, why does DNA move towards the positive electrode?
- ADNA has a negative charge from its phosphate groups
- BDNA has a positive charge from the nitrogen bases it contains
- CDNA has no charge and moves at random
- DDNA is pulled by gravity through the gel
7.어려움
Two parents who both have a genetic condition have a child who does not. Assuming a single gene, what inheritance pattern does this show?
- AX-linked recessive, with the father as a carrier
- BAutosomal recessive, with both parents homozygous
- CAutosomal dominant, with both parents heterozygous
- DAutosomal recessive, with both parents heterozygous
8.어려움
Fleming saw a clear area with no bacteria around a Penicillium mould growing on a bacterial plate. What was the best explanation?
- AThe bacteria had turned into mould cells
- BThe mould released a substance that killed or stopped the bacteria
- CThe bacteria had moved away to find more food
- DThe mould used up all of the oxygen that the nearby bacteria needed
정답표
- 1. B · It trains the immune system with a harmless form of a pathogen
- 2. A · Testosterone
- 3. A · 처치한 집단과 비교할 기준을 제공하는 것
- 4. C · To help prevent vitamin A deficiency
- 5. A · The dependent variable
- 6. A · DNA has a negative charge from its phosphate groups
- 7. C · Autosomal dominant, with both parents heterozygous
- 8. B · The mould released a substance that killed or stopped the bacteria
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