Long term, heavy drinking can lead to ____, a disease characterized by inflammation and destruction of the liver
a. hepatoblastoma
b. gall stones
c. fatty liver disease
d. jaundice
e. hepatitis
ANSWER: e
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Induced pluripotent stem cells are ____
a. produced from normal body cells b. not used for human genetic research c. a major cause of cancer d. grown in the lab to produce clones e. isolated from embryos
Why is a variegated plant considered heteroplasmic?
A) The plant has mutant and wild-type chloroplast DNAs distributed amongst the cells in different ratios. B) The plant has only two types of cells, one with only mutant chloroplast DNAs and one with only wild-type chloroplast DNAs. C) All of the plant's cells have mutant and wild-type chloroplast DNAs. D) All of the plant's cells have mitochondria and chloroplasts.
Why does water have a high heat capacity?
a. because it has covalent bonds b. because it has ionic bonds c. because it has hydrogen bonds d. because it has a high boiling point e. because it has a low freezing point
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.