Creutzfeldt-Jalob disease is one of the diseases caused by infectious proteins called
____________________. Fill in the blank(s) with the appropriate word(s).
ANS: prions
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Complementation studies can be performed in bacteria by
A) gene targeting. B) forming merodiploids with one copy of a bacterial gene on an F? plasmid. C) forming merodiploids with two copies of a bacterial gene on F? plasmids. D) forming diploids with two copies of the bacterial chromosome.
Which statement is true regarding the ethical considerations surrounding human genetics?
a. Genetic discrimination is not a concern in the US with the scant genetic information known now. b. Genetic discrimination is not possible when all the genetic information and its effects are known. c. In the current ethical climate genetic privacy is not a significant concern. d. Consanguineous matings increase the chances of the inheritances of autosomal recessive alleles. e. Insurance companies have no arguments for wanting genetic information on their policy holders.
The occurrence of an RNA world early in the history of life can never be proven, but experiments with _____ have
shown that it is feasible. a. in vitro evolution b. Darwin’s evolution c. indirected evolution d. chemical evolution e. biological evolution
Consider organism that are eukaryotic, are found in both unicellular and multicellular forms may resemble plants but are not photosynthetic, have chitin in their cell walls, and absorb organic nutrients from decomposing material in the environment. These organisms would be classified as which of the following types of organisms?
a. archaea b. bacteria c. protozoa d. fungi