Which of the following CANNOT be inferred from the passage
A: We are a walking, living, breathing record of our ancestors.
B: Many American slaves did not know who their ancestors were.
C: An adopted child generally lacks enough information to prove his identity.
D: Molecular genealogy can be used to prove a relationship between individuals.
A: We are a walking, living, breathing record of our ancestors.
B: Many American slaves did not know who their ancestors were.
C: An adopted child generally lacks enough information to prove his identity.
D: Molecular genealogy can be used to prove a relationship between individuals.
C
举一反三
- Passage Three We all know that DNA has the ability to identify individuals but, because it is inherited, there are also regions of the DNA strand which can relate an individual to his or her family (immediate and extended), tribal group and even an entire population. Molecular Genealogy (宗谱学) can use this unique identification provided by the genetic markers to link people together into family trees. Pedigrees (家谱) based on such genetic markers can mean a breakthrough for family trees where information is incomplete or missing due to adoption, illegitimacy or lack of records. There are many communities and populations which have lost precious records due to tragic events such as the fire in the Irish courts during Civil War in 1921 or American slaves for whom many records were never kept in the first place. The main objective of the Molecular Genealogy Research Group is to build a database containing over 100,000 DNA samples from individuals all over the world. These individuals will have provided a pedigree chart of at least four generations and a small blood sample. Once the database has enough samples to represent the world genetic make-up, it will eventually help in solving many issues regarding genealogies that could not be done by relying only on traditional written records. Theoretically, any individual will someday be able to trace his or her family origins through this database. In the meantime, as the database is being created, molecular genealogy can already verify possible or suspected relationships between individuals. "For example, if two men sharing the same last name believe that they are related, but no written record proves this relationship, we can verify this possibility by collecting a sample of DNA from both and looking for common markers (in this case we can look primarily at the Y chromosome (染色体))," explains A. Perego, a member of the BYU Molecular Genealogy research team.
- Which of the following is true of the relationship between language and culture? A: Cultural identity can NOT be destroyed by suppressing（压制） a language. B: Cultural identity can be destroyed by suppressing（压制） a language. C: Cultural identity can not be created by promoting（提倡） a language. D: There is no relationship between language and cultural identity. E: There is no relationship between language and culture.
- Which of the following can be identified as inference questions?( ) A: The passage implies that… B: The author suggests that … C: It can be inferred from the passage that… D: Based on the passage, we can assume that …
- In the passage the author implied that ______. A: music did not exist before the Middle Ages B: we were not better off than the Greek and Roman men C: there .was not enough evidence to prove that Western music was originated from the ancient Greece and Rome D: there were no authentic remains of the ancient Roman music
- Which of the following is true of the relationship between language and culture? A: Cultural identity can NOT be destroyed by suppressing（压制） a language. B: Cultural identity can be destroyed by suppressing（压制） a language. C: Cultural identity can NOT be created by promoting（提倡） a language. D: There is no relationship between language and culture.
内容
- 0
Who were the ancestors of the English and the founders of England ?
- 1
He had inherited a large mansion from his ancestors who had been members of the _______.
- 2
Which of the following is NOT true? A: Our diet should be balanced. B: We can keep fit by eating more vegetables and fruits. C: Our diet should contain as many things as possible. D: We should get enough protein from fruits and vegetables.
- 3
The way he did it was different ________ we were used to. A: in which B: in what C: from what D: from which
- 4
Why were the documents released A: To improve the relationship with Russia. B: To urge Clinton not to end the trade restriction. C: To prove that many soldiers are still missing. D: To provide more information about North Vietnam.