DNA fingerprinting was first used in _________．

试卷相关题目

• 1DNA fingerprinting is a technique of _________．

  A.grouping DNA strands into structures

  B.segmenting DNA with probes

  C.constructing body tissues by enzymes

  D.identifying a person by comparing DNAs

  开始考试点击查看答案
• 2If two sisters are identical twins．their complete DNAs are _________．

  A.the same

  B.unique

  C.different

  D.similar

  开始考试点击查看答案
• 3When the writer says “critical period”，he means a period when__________．

  A.studies produce useful results

  B.adults need to be taught like children

  C.1anguage learning takes place effectively

  D.immigrants want to learn another language

  开始考试点击查看答案
• 4What does the Harvard finding show、

  A.Not all toddlers use babytalk．

  B.Some children need more conversation than others．

  C.Language learning takes place in ordered steps．

  D.Not all brains work in the same way．

  开始考试点击查看答案
• 5What aspect of the adopted children’s language development differed from that of US—born children、

  A.The rate at which they acquired language．

  B.Their first words．

  C.The way they learnt English．

  D.The point at which they started producing sentences．

  开始考试点击查看答案
• 6People question the reliability of DNA fingerprinting for _________．

  A.the subjective interpretation of test results

  B.its complex procedure

  C.its large scale research

  D.its uniform testing standards

  开始考试点击查看答案
• 7It can be inferred from Paragraph 5 that DNA fingerprinting _________．

  A.is costly to the police

  B.could be a social issue

  C.1s the only way to prove innocence

  D.has been a profitable business

  开始考试点击查看答案
• 8Why did the wild life experts visit the Kalahari Desert、

  A.To find where honey badgers live.

  B.To catch some honey badgers for food.

  C.To find out why honey badgers have a bad reputation.

  D.C.To find out why honey badgers have a bad reputation.D.To observe how honey badgers behav

  开始考试点击查看答案
• 9What does Kitso Khama say about honey badgers、

  A.They are always looking for food.

  B.They do not enjoy human company.

  C.It is common for them to attack people.

  D.B.They do not enjoy human company.C.It is common for them to attack peopl

  E.D.They show interest in things they are not familiar with.

  开始考试点击查看答案
• 10What did the team find out about honey badgers、

  A.There were some creatures they did not eat.

  B.They were afraid of poisonous creatures.

  C.Female badgers did not mix with male badgers.

  D.They may get some of the water they needed from fruit.

  开始考试点击查看答案