It is the morning of a big test. You are very nervous about it. Your heart is racing and your blood pressure is increased
You are feeling the effects of the ____ division of the ____ nervous system.
a. parasympathetic; autonomic
b. parasympathetic; somatic
c. sympathetic; autonomic
d. sympathetic; somatic
e. autonomic; somatic
ANSWER: c
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What distinguishes expression vectors from other cloning vectors?
a. Expression vectors do not have an origin of replication. b. Only expression vectors have origins of replication. c. Expression vectors contain regulatory sequences to allow transcription and translation of an inserted gene. d. Inserted genes cannot be transcribed from an expression vector. e. Expression vectors do not contain antibiotic resistance genes.
Pollution of groundwater is generally a more serious concern, in part because groundwater is a slowly exchanging pool
Indicate whether the statement is true or false
If someone is sleepwalking...
-you should try to wake them up -it will probably occur in the last part of the night -sleepwalkers can engage in complex movements because they are aware of their surroundings as they are when awake -they can be a danger to themselves or others
A mutagenic factor that can alter DNA by the loss of a chromosome segment is known as
A. translocation B. crossing over C. deletion D. nondisjunction