1.やさしい
What are homologous chromosomes?
- AChromosomes that are found only in gametes
- BA matching pair, one from each parent, that carry the same genes
- CTwo chromosomes that are always the X and the Y
- DTwo identical copies of one chromosome made when DNA is replicated
2.やさしい
What is transpiration?
- AThe growth of roots towards water
- BThe movement of sugars through the phloem to the roots
- CThe loss of water vapour from the leaves of a plant
- DThe taking in of CO₂ for photosynthesis
3.やさしい
What is a mutagen?
- ASomething that can cause changes in DNA
- BA protein that repairs damaged DNA
- CA cell that divides without control
- DAn enzyme that copies DNA
4.ふつう
科学の理論は、仮説とどう違うか。
- A理論は、まだ検証されていない推測である
- B理論は、新しいデータによって変更されることが決してない
- C多くの検証された証拠に裏付けられた広範な説明である
- D理論は、1 つの実験の結果である
5.ふつう
Which sequence describes the usual flow of genetic information in a cell?
- ADNA to protein to RNA
- BProtein to RNA to DNA
- CDNA to RNA to protein
- DRNA to DNA to protein
6.ふつう
How are photosynthesis and aerobic respiration related?
- ABoth take place only in chloroplasts
- BBoth release oxygen into the air
- CThe products of one are the reactants of the other
- DBoth happen only in animal cells, never in plant cells
7.むずかしい
Why do phospholipids arrange themselves into a double layer in water?
- AThey carry a strong positive charge on both ends
- BTheir heads are hydrophobic and their tails are hydrophilic
- CTheir heads are hydrophilic and their tails are hydrophobic
- DThey are fully soluble in water
8.むずかしい
A large molecule contains carbon, hydrogen, oxygen, nitrogen and phosphorus. Its monomers each have a sugar and a base. What type of molecule is it?
- AA carbohydrate
- BA lipid
- CA protein
- DA nucleic acid
解答
- 1. B · A matching pair, one from each parent, that carry the same genes
- 2. C · The loss of water vapour from the leaves of a plant
- 3. A · Something that can cause changes in DNA
- 4. C · 多くの検証された証拠に裏付けられた広範な説明である
- 5. C · DNA to RNA to protein
- 6. C · The products of one are the reactants of the other
- 7. C · Their heads are hydrophilic and their tails are hydrophobic
- 8. D · A nucleic acid
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