Câu hỏi trắc nghiệm (10 câu):
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Câu 1: Mã câu hỏi: 318538
Read the passage carefully and choose the correct answer
Our family members resemble each other because we have the same genetic formation in our DNA, and this formation has been passed from parents to children for many generations. Much like the children humans create, plants pass on their genetic formation in their seeds. The seeds of endangered and imperiled plants are so valuable because there are no other plants in the world with that same genetic formation, and we are at risk of loosing these genetic resources forever. But preserving the genetic diversity of some species can be quite difficult. When researchers and conservationists preserve a plant, one of their goals is to preserve genetic variety. “By preserving the genes of these plants, we preserve the possibility for adaptations in the future,” explains Dr. Christina Walters, a plant physiologist. After collected seeds must be stored for future use, planting or research. Since seeds begin to grow when it is warm and wet, scientists store seeds in places that are cold and dry, which is called a seed bank. But not all seeds survive the drying and freezing treatments, and care must be taken so that they are not harmed during banking. When researchers attempt to store a seed, they examine what is known about the growth habits of the plant, its habitat and geographical distribution, and then classify the seeds by storage needs.
The text is about ____.
- A. generations
- B. genetic formation
- C. DNA
- D. seed preservation
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Câu 2: Mã câu hỏi: 318539
Plants ____.
- A. do not have genetic formation
- B. have genetic formation as human beings do
- C. do not pass on the genetic formation in their seeds
- D. cannot be preserve by seed storing
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Câu 3: Mã câu hỏi: 318540
Genetic preservation is ____.
- A. very easy
- B. uneasy
- C. inexpensive
- D. impossible
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Câu 4: Mã câu hỏi: 318541
Scientists preserve seeds ___.
- A. to plant or research
- B. for fun
- C. for money
- D. to consume in the future
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Câu 5: Mã câu hỏi: 318542
A seed bank ____
- A. is a place where we can keep our money
- B. is wet and warm
- C. is dry and cold
- D. is a place where seeds cannot be stored
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Câu 6: Mã câu hỏi: 318543
Find the one mistake (a, b, c or d) in these sentences
Because of her father has been seriously ill, she can't go to the meeting.
- A. Because of
- B. has been
- C. seriously ill
- D. can't go
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Câu 7: Mã câu hỏi: 318544
Find the mistake: There were so many different types on bread that I didn't know which to buy.
- A. so
- B. different
- C. on
- D. which
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Câu 8: Mã câu hỏi: 318545
Find the mistake: He is known that these questions are so difficult that he can’t answer them.
- A. is known
- B. these question
- C. so difficult
- D. can't answer them
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Câu 9: Mã câu hỏi: 318546
Find the mistake: This water isn’t warm enough for the young boys to swim.
- A. This water
- B. warm enough
- C. young boys
- D. to swim
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Câu 10: Mã câu hỏi: 318547
Find the mistake: Last week unless my mother had had enough money, she would have bought that toy for me.
- A. unless
- B. had had
- C. enough money
- D. would have bought
