1.やさしい
What does ATP stand for?
- AAmino triphosphate
- BAdenosine diphosphate
- CAdenosine triphosphate
- DAdenine tetraphosphate
2.やさしい
What are homologous chromosomes?
- AChromosomes that are found only in gametes
- BTwo identical copies of one chromosome made when DNA is replicated
- CTwo chromosomes that are always the X and the Y
- DA matching pair, one from each parent, that carry the same genes
3.やさしい
What is a trait that is controlled by many genes called?
- AA codominant trait
- BA sex-linked trait
- CA recessive trait
- DA polygenic trait
4.ふつう
Clostridium tetani grows in deep puncture wounds but is killed by oxygen. How is this bacterium described?
- AAn obligate anaerobe
- BA photosynthetic bacterium
- CA facultative anaerobe
- DAn obligate aerobe
5.ふつう
Why can DNA profiling (fingerprinting) identify individual people?
- ARepeated non-coding DNA regions vary in length between people
- BEvery person has a different number of chromosomes in their cells
- CDNA in blood differs from DNA in skin
- DEach person's genes code for different amino acids
6.ふつう
A thermometer gives readings of 36.1, 36.1 and 36.2 °C for a water bath that is really at 37.0 °C. How are these readings best described?
- AAccurate but not precise
- BBoth accurate and precise
- CPrecise but not accurate
- DNeither accurate nor precise
7.むずかしい
A food sample turns purple with biuret reagent but stays yellow-brown with iodine solution. What does the sample contain?
- AFat but no protein
- BBoth protein and starch
- CProtein but no starch
- DStarch but no protein
8.むずかしい
Plants in waterlogged soil take up fewer mineral ions, even when the ions are plentiful. What is the best explanation?
- ARoot cells lack oxygen, so less ATP is made for active transport
- BMineral ions only enter by osmosis, and osmosis stops in wet soil
- CWater dilutes the ions so much that roots cannot detect them
- DWaterlogged roots carry out more photosynthesis
解答
- 1. C · Adenosine triphosphate
- 2. D · A matching pair, one from each parent, that carry the same genes
- 3. D · A polygenic trait
- 4. A · An obligate anaerobe
- 5. A · Repeated non-coding DNA regions vary in length between people
- 6. C · Precise but not accurate
- 7. C · Protein but no starch
- 8. A · Root cells lack oxygen, so less ATP is made for active transport
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