1.やさしい
What are the parts of a triglyceride (a fat molecule)?
- AThree glucose units and one phosphate
- BOne glycerol and three fatty acids
- CTwo glycerols and one fatty acid
- DOne amino acid and three fatty acids
2.やさしい
Which sugar is found in DNA?
- AFructose
- BRibose
- CDeoxyribose
- DGlucose
3.やさしい
What is an organism's genome?
- AThe traits that can be seen
- BA single gene on one chromosome
- CThe proteins made by one cell
- DAll of its genetic material
4.ふつう
Why do the palisade cells near the top surface of a leaf contain many chloroplasts?
- AThey protect the leaf from insects and strong winds
- BThey carry sugars from the leaves down to the roots
- CThey store most of the plant's water for dry periods
- DThey get the most light and do most of the photosynthesis
5.ふつう
Why can an electron microscope show more detail than a light microscope?
- AElectron microscopes use stronger glass lenses
- BElectrons are brighter than light
- CElectron microscopes use living cells only
- DElectrons have a much shorter wavelength than light
6.ふつう
Which is an example of negative feedback?
- AA wound becoming more inflamed over time
- BContractions growing stronger during labour
- CBlood clotting speeding up once it starts
- DSweating when body temperature rises
7.むずかしい
鋳型DNA鎖の配列が 3'-TACGGA-5' である。そこからつくられるmRNAはどれか。
- A5'-ATGCCT-3'
- B5'-TACGGA-3'
- C5'-AUGCCU-3'
- D5'-UACGGA-3'
8.むずかしい
Why are modified viruses often used to deliver genes in gene therapy?
- AViruses can reproduce without a host cell
- BViruses are larger than human cells, so they can carry many genes
- CViruses produce antibodies that fix faulty genes
- DViruses naturally insert their genetic material into host cells
解答
- 1. B · One glycerol and three fatty acids
- 2. C · Deoxyribose
- 3. D · All of its genetic material
- 4. D · They get the most light and do most of the photosynthesis
- 5. D · Electrons have a much shorter wavelength than light
- 6. D · Sweating when body temperature rises
- 7. C · 5'-AUGCCU-3'
- 8. D · Viruses naturally insert their genetic material into host cells
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