1.やさしい
What is the aim of gene therapy?
- ATo give a patient antibiotics through a vein to kill a virus
- BTo treat a disease by adding a working copy of a faulty gene
- CTo change the patient's blood type
- DTo remove all the genes from a patient's cells
2.やさしい
Which sugar is found in DNA?
- AGlucose
- BRibose
- CFructose
- DDeoxyribose
3.やさしい
Which characteristic is shared by all living things?
- AThey are made of many cells
- BThey have a backbone and a brain
- CThey make their own food by photosynthesis
- DThey respond to changes in their environment
4.ふつう
The results of an experiment do not support the hypothesis. What should the scientist do next?
- AReport that the hypothesis was proven correct
- BStop doing any further research on the question
- CRevise the hypothesis and test it again
- DChange the data so they fit the hypothesis
5.ふつう
Identical twins raised in different homes have different body weights. What does this show?
- AThe twins must have different genotypes for body weight genes
- BThe phenotype depends on environment as well as genotype
- CMutations happened in every cell of one twin
- DBody weight is controlled by a single gene
6.ふつう
In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?
- AAbout 10 000 units
- BAbout 5000 units
- CAbout 1000 units
- DAbout 10 units
7.むずかしい
A point mutation changes a codon in the middle of a gene into a stop codon. What is the most likely effect?
- ANo change, because stop codons are ignored
- BA protein with one different amino acid
- CA protein that is longer than normal
- DA shortened protein that usually does not work
8.むずかしい
A study finds that coffee drinkers have more lung cancer. Later it is found that coffee drinkers in the study also smoked more. What is smoking in this study?
- AA placebo
- BThe dependent variable
- CThe control group
- DA confounding variable
解答
- 1. B · To treat a disease by adding a working copy of a faulty gene
- 2. D · Deoxyribose
- 3. D · They respond to changes in their environment
- 4. C · Revise the hypothesis and test it again
- 5. B · The phenotype depends on environment as well as genotype
- 6. C · About 1000 units
- 7. D · A shortened protein that usually does not work
- 8. D · A confounding variable
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