1.やさしい
Which feature helps a sperm cell carry out its job?
- AChloroplasts for making food
- BA cell wall for protection
- CA flagellum for swimming
- DA large vacuole for storing water
2.やさしい
Which definition of a species is most often used for animals?
- AAll of the different organisms that live together in one area
- BAny organisms that look alike
- CAll the animals that eat the same food
- DA group that can interbreed and have fertile offspring
3.やさしい
In genetics, what is a carrier?
- AA person who has lost both alleles for the gene, so shows no trait
- BA person with one recessive allele for a disorder but no symptoms
- CA person with two recessive alleles who has the disorder
- DA person who has a dominant disorder
4.ふつう
What is a chromosomal translocation?
- AOne DNA base is replaced by another base
- BA piece of a chromosome is copied twice and stays in the same place
- CA piece of one chromosome attaches to a non-matching chromosome
- DA piece of a chromosome is flipped around in place
5.ふつう
Which list puts these human energy sources in order from fastest to use to longest-lasting store?
- AFat, then glycogen, then ATP
- BATP, then fat, then glycogen
- CATP, then glycogen, then fat
- DGlycogen, then ATP, then fat
6.ふつう
Clostridium tetani grows in deep puncture wounds but is killed by oxygen. How is this bacterium described?
- AA facultative anaerobe
- BA photosynthetic bacterium
- CAn obligate anaerobe
- DAn obligate aerobe
7.むずかしい
Under the microscope, homologous chromosomes are moving to opposite poles, and each is still made of two chromatids. Which stage is this?
- AAnaphase of mitosis
- BAnaphase II of meiosis
- CProphase of mitosis
- DAnaphase I of meiosis
8.むずかしい
In uncontrolled diabetes, glucose appears in the urine and the person passes large volumes of urine. What is the best explanation?
- AInsulin makes the kidneys filter more blood
- BGlucose is broken down into water in the bladder
- CGlucose in the kidney filtrate holds water by osmosis
- DGlucose makes the kidneys absorb more water
解答
- 1. C · A flagellum for swimming
- 2. D · A group that can interbreed and have fertile offspring
- 3. B · A person with one recessive allele for a disorder but no symptoms
- 4. C · A piece of one chromosome attaches to a non-matching chromosome
- 5. C · ATP, then glycogen, then fat
- 6. C · An obligate anaerobe
- 7. D · Anaphase I of meiosis
- 8. C · Glucose in the kidney filtrate holds water by osmosis
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