Organisms that have been genetically engineered are called ____, because they have been modified to contain genetic
information called a(n) ____ from an external source
a. transgenic; transgene
b. transgenic; oncogene
c. somatic; Ti plasmid
d. genetically modified organisms; restriction fragment length polymorphism
e. somatic; transgene
ANSWER: a
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A faster-than-normal heart rate is called:
a. brachycardia b. atrial fibrillation c. tachycardia d. ventricular fibrillation e. stroke
__________ promotes senescence and abscission. It
also inhibits growth of roots and stems. Fill in the blank(s) with the appropriate word(s).
The word “echinoderm” refers to
a. rounded skin b. smooth skin c. crusty skin d. spiny skin e. none of the above
Which of the following processes is not an agent of microevolution?
A) polygenic inheritance B) natural selection C) gene flow D) mutation E) genetic drift