Which of the following sequences indicates the promoter region of a gene?
a. CAAT
b. UAAG
c. CTTT
d. ACAT
e. TAAC
a
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The two major divisions of the vertebral nervous system are the:
a. autonomic and peripheral systems b. sympathetic and parasympathetic systems c. cranial and spinal nerves d. central and peripheral nervous systems e. brain and spinal cord
A DNA sequence that can be read the same backward and forward is called a(n)
A) repetitive code. B) palindrome. C) plasmid sequence. D) DNA fingerprint. E) exon.
Ritalin, like cocaine and amphetamines, acts by increasing the concentration of which neurotransmitter in neuronal synapses?
A) dopamine B) serotonin C) acetylcholine D) gamma-aminobutyric acid (GABA)
The class of antibody known as IgA is
A. Found in the mucous found in the respiratory, intestinal and genito-urinary tracts B. capable of crossing the placenta from mother to fetus C. It is formed of a single unit (monomer) of antibody molecule D. It works only against viruses infecting the upper respiratory tract