Practice Quiz for Distribution
of Blood Types

No. of Questions= 7

INSTRUCTIONS: To answer a question, click the button in front of your choice. A response will appear in the window below the question to let you know if you are correct. Be sure to read the feedback. It is designed to help you learn the material. You can also learn by reading the feedback for incorrect answers.

1 Which of the following statements is true of human blood?
a) Our blood typing systems are unique to our species.
b) It is common around the world for people to use blood types as criteria for selecting marriage partners.
c) Each of us can be categorized on the basis of a number of different blood typing systems.
2 If someone says that his or her blood is A+, this refers to the:
a) ABO type
b) Rh type
c) ABO and Rh types
3 Which of the following statements is true about the worldwide frequency distributions of blood types B and O?
a) They neatly overlap, indicating that whatever factors have been selecting for type B have also been at work selecting for type O.
b) Where type O is unusually high in frequency, type B is usually relatively low.
c) They both are very similar to the distribution pattern of skin color, suggesting that the same factors have been selecting for blood types and skin pigmentation.
d) B and C
4 The worldwide frequency distribution of the different ABO blood types:
      Map Help      
a) is complex, having both clinal and discontinuous patterns
b) follows latitude lines, indicating that climate is an important selective factor for this trait
c) is simple and predictable, with each continent having its own exclusive type among the native populations
5 Which of the following statements is true?
a) The worldwide distribution patterns for the ABO blood system support the typological model of human variation.
b) Human blood can be unambiguously typed--there are no degrees of difference.
c) Mapping the distribution of blood types has proven to be a poor tool for studying the nature of human variation.
6 Blood types are:
a) genetically inherited
b) acquired after birth as a result of environmental factors
c) genetically inherited but may be changed after birth as a result of natural selection
7 Native populations that include people who have the Diego positive blood type can be found in _______________________ .
a) Europe and Africa
b) India and Australia
c) Japan and South America
d) all of the above


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