The compound that Dr. Folling isolated from the urine of the Egeland children was ____________
A. phenylalanine D. phtalamine
B. pyruvic acid E. pertussic acid
C. phenylpyruvic acid
C
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Middle eastern respiratory syndrome (MERS) is caused by
A) Streptococcus pneumoniae. B) the influenza virus. C) a coronavirus. D) a rhinovirus.
Individuals with Lesch—Nyhan syndrome exhibit
A) urine that turns black when exposed to air. B) compulsive self-mutilation behaviors. C) lighter than normal pigmentation of skin, hair, and eyes. D) severe anemia. E) a cherry-colored spot on the retina.
If a cell is dividing by binary fission then you know that:a
mitosis has taken place without cytokinesis. b. homologous chromosomes have already paired. c. the cyclin-Cdk complex is no longer phosphorylating enzymes. d. the cell cycle is out of control. e. the cell is prokaryotic
This type of mechanoreceptor is found in the lips, nipples, and fingertips and helps us to precisely determine contact with something else
A) free nerve endings B) Pacinian corpuscles C) hair root plexus D) Meissner's corpuscles