Six fingers on one hand would be classified as a(n) ____
a. genetic disorder
b. disease
c. syndrome
d. genetic abnormality
e. illness
ANSWER: d
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Which of the following would be most effective and practical for routine home disinfection of a kitchen sponge between uses?
A. 70% Isopropyl alcohol B. Hydrogen peroxide C. Iodophor D. Chlorine bleach
The difference between normal hemoglobin and sickle-cell hemoglobin is in the
a. heme portion of the molecules. b. number of chains of amino acids. c. substitution of a specific amino acid for another specific amino acid. d. addition of one amino acid to the normal hemoglobin molecule. e. deletion of only one amino acid from the normal hemoglobin molecule.
The ground tissue lacking in the primary eudicot root is:
a. pith b. periderm c. cortex d. vascular cambium e. pericycle
When the DNA of a bacterial phage is integrated into a host bacterial cell, it is considered to be _________.
a) latent b) a prophage c) attenuated d) competent