In order to transfer gene a, b, and c to an F- cell, how long must the sex pilus be in place?
a. Less than 4 minutes.
b. 10 minutes.
c. 14 minutes.
d. More than 8 minutes but less than 20.
e. 5 minutes
B
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Genetic variations that confer no apparent selective advantage or disadvantage in a particular environment are said to be selectively ____
a. random b. deleterious c. neutral d. benign e. stabilizing
All of the following are characteristics of IgM except
A. it contains a central J chain. B. it has 10 antigen binding sites. C. it is the first class synthesized by a plasma cell. D. it is a dimer. E. it can serve as a B-cell receptor.
Which of the following is a type of joint that allows movement only in one direction?
A. Hinges B. Ball and sockets C. Suture points D. None of the joints above allow movement only in one direction
Affluenza is defined as __________
A. a condition by which material goods fail to bring contentment B. rising rates of global consumption C. increased production of waste and pollution D. long-term economic disorder E. a viral infection that causes flu-like symptoms