Amniocentesis is a procedure that is normally used
A. to change the sex of the fetus.
B. to reduce the risk of genetic disease.
C. for diagnosis of genetic disorders.
D. for nourishing the fetus.
E. for gene therapy.
Answer: C
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The scientific study of animal behavior is known as
A. proximate causes. B. ethology. C. behaviorism. D. psychology. E. inclusive ecology.
An enzyme is thought to optimize the fit between substrates by restraining and stretching or squeezing them into
certain shapes and moving them to the transition state, as described by the ____ model of enzyme activity.
a. lock and key b. induced-fit c. template d. activation e. conformational
Which of the following is NOT an example of a possible agricultural application for animal cloning?
A) cloning sheep that produce more wool at a younger age B) cloning turkeys that have larger breast muscles C) cloning hamsters to produce human erythropoietin (EPO). D) cloning chickens that lay more eggs E) cloning cows that produce more milk
Plasmids of the same compatibility group
a. also must be multicopy plasmids. b. require each other's presence for replication. c. have large sections of homology. d. must be found in the same cell or the cell cannot survive. e. cannot coexist because they are treated as having two origins and are partitioned.