Which of the following sequences indicates the promoter region of a gene?

a. CAAT
b. UAAG
c. CTTT
d. ACAT
e. TAAC


a

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

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)

Biology & Microbiology

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

Biology & Microbiology