When evolution runs backwards: Reading answers

The passage opens

Answers 27–40

1. 27

   When discussing the theory developed by Louis Dollo, the writer says that

   C: it was modified by biologists in the early twentieth century. Multiple choice

2. 28

   The humpback whale caught off Vancouver Island is mentioned because of

   D: the reason given for its unusual features. Multiple choice

3. 29

   What is said about 'silent genes'?

   C: They could lead to the re-emergence of certain characteristics. Multiple choice

4. 30

   The writer mentions the mole salamander because

   B: it suggests that Raff's theory is correct. Multiple choice

5. 31

   Which of the following does Wagner claim?

   A: Members of the Bachia lizard family have lost and regained certain features several times. Multiple choice

6. 32

   For a long time biologists rejected

   F: the possibility of evolution being reversible. Matching headings

7. 33

   Opposing views on evolutionary throwbacks are represented by

   G: Dollo's findings and the convictions held by Lombroso. Matching headings

8. 34

   Examples of evolutionary throwbacks have led to

   A: the question of how certain long-lost traits could reappear Matching headings

9. 35

   The shark and killer whale are mentioned to exemplify

   B: the occurrence of a particular feature in different species. Matching headings

10. 36

    One explanation for the findings of Wagner's research is

    D: the continued existence of certain genetic information. Matching headings

11. 37

    Wagner was the first person to do research on South American lizards.

    NOT GIVEN Yes / No / Not Given

12. 38

    Wagner believes that Bachia lizards with toes had toeless ancestors.

    YES Yes / No / Not Given

13. 39

    The temporary occurrence of long-lost traits in embryos is rare.

    NO Yes / No / Not Given

14. 40

    Evolutionary throwbacks might be caused by developmental problems in the womb.

    YES Yes / No / Not Given

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