1.쉬움
What is a monosaccharide?
- ATwo sugars joined together, such as sucrose
- BA single sugar unit, such as glucose
- CA fat made of glycerol and fatty acids
- DA chain of many amino acids
2.쉬움
In which stage of the cell cycle does a cell spend most of its time?
- AMetaphase
- BInterphase
- CAnaphase
- DProphase
3.쉬움
What does the polymerase chain reaction (PCR) do?
- AIt makes many copies of a piece of DNA
- BIt turns RNA into protein
- CIt separates proteins by their charge
- DIt cuts DNA at specific sequences
4.보통
Why must human gametes be haploid?
- ASo that the gametes can divide quickly by mitosis
- BSo that the gametes can make more proteins
- CSo that the zygote has twice the normal number of chromosomes
- DSo that the zygote has the normal number of 46 chromosomes
5.보통
이형 접합인 부모(Aa × Aa)를 교배했고 A가 완전 우성입니다. 기대되는 표현형 비는 얼마인가요?
- A우성 1 : 중간형 2 : 열성 1
- B우성 3 : 열성 1
- C우성 1 : 열성 1
- D모두 우성
6.보통
The human arm, bat wing and whale flipper contain the same set of bones. What does this suggest?
- AThey evolved completely separately
- BThey share a common ancestor
- CThey are the result of acquired traits
- DThey have the same function
7.어려움
A plant cell is placed in a strong salt solution. Its membrane and cytoplasm pull away from the cell wall. What is this called?
- ATurgor
- BCrenation
- CPlasmolysis
- DLysis
8.어려움
After a meal, blood glucose rises. Which response brings it back to normal?
- AThe kidneys release insulin into the urine
- BThe pancreas releases insulin, and cells take up glucose
- CThe pancreas releases glucagon, and the liver releases glucose
- DThe liver stops storing glycogen and releases more glucose
정답표
- 1. B · A single sugar unit, such as glucose
- 2. B · Interphase
- 3. A · It makes many copies of a piece of DNA
- 4. D · So that the zygote has the normal number of 46 chromosomes
- 5. B · 우성 3 : 열성 1
- 6. B · They share a common ancestor
- 7. C · Plasmolysis
- 8. B · The pancreas releases insulin, and cells take up glucose
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