1.쉬움
What is a monomer?
- AA small unit that joins with others to form a polymer
- BA very large molecule that is made of many smaller units
- CA molecule that contains no carbon
- DAn enzyme that breaks down polymers
2.쉬움
리소좀은 어떤 일을 하나요?
- A아미노산으로 단백질을 만든다
- B세포의 유전 정보를 저장한다
- C세포를 위해 빛에너지를 흡수한다
- D노폐물과 낡은 부분을 분해한다
3.쉬움
What is the main role of carbohydrates in the human diet?
- ATo carry the body's genetic information
- BTo provide a quick source of energy
- CTo build muscle tissue
- DTo form antibodies
4.보통
A deletion removes exactly three bases, forming one whole codon, from the middle of a gene. What is the most likely result?
- AEvery amino acid after the deletion is changed to a new one
- BNo protein can be made at all
- CThe protein lacks one amino acid but the rest is unchanged
- DThe protein becomes three times longer
5.보통
Why does ice float on liquid water?
- AIce contains more air than liquid water
- BIce molecules are lighter than liquid water molecules
- CIce is denser than liquid water
- DHydrogen bonds hold ice in an open, less dense structure
6.보통
전사 과정에서는 어떤 일이 일어나나요?
- AmRNA의 정보로 단백질이 만들어진다
- BDNA로부터 유전자의 mRNA 사본이 만들어진다
- C분열 전에 DNA 분자 전체가 복제된다
- D리보솜에서 아미노산이 연결된다
7.어려움
Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?
- A23², about 529
- B2²³, about 8 million
- C2 × 23, which is 46
- D46, one for each chromosome
8.어려움
Why are organ transplant patients usually given drugs that suppress the immune system?
- AThe drugs help the new organ to grow larger
- BThe drugs change the donor organ's DNA so that it matches the patient
- CTheir immune system would recognise the donor cells as foreign
- DThe donor organ contains bacteria that must be killed
정답표
- 1. A · A small unit that joins with others to form a polymer
- 2. D · 노폐물과 낡은 부분을 분해한다
- 3. B · To provide a quick source of energy
- 4. C · The protein lacks one amino acid but the rest is unchanged
- 5. D · Hydrogen bonds hold ice in an open, less dense structure
- 6. B · DNA로부터 유전자의 mRNA 사본이 만들어진다
- 7. B · 2²³, about 8 million
- 8. C · Their immune system would recognise the donor cells as foreign
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