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Noncoding DNA: Quiz

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Question 1: According to a 1980 review in Nature by Leslie Orgel and ________, junk DNA has "little specificity and conveys little or no selective advantage to the organism".
Marshall Warren NirenbergJames D. WatsonFrancis CrickMaurice Wilkins

Question 2: ________ and retrotransposons are mobile genetic elements.
DNAMicrosatelliteTransposonAlu sequence

Question 3: [16] This allows for the creation of mutant alleles that incorporate new functions that may be favored by natural selection; thus, pseudogenes can serve as raw material for ________ and can be considered "protogenes".
Population geneticsLifeEvolutionIntroduction to evolution

Question 4: [2] The pufferfish ________ rubripes genome is only about one eight the size of the human genome, yet seems to have a comparable number of genes; approximately 90% of the Takifugu genome is noncoding DNA.
BacteriaMolluscaTakifuguTetraodontidae

Question 5: [14] Because pseudogenes are presumed to evolve without evolutionary constraint, they can serve as a useful model of the type and frequencies various spontaneous ________.
Population geneticsSpeciationMutationMolecular evolution

Question 6: ________ are DNA sequences, related to known genes, that have lost their protein-coding ability or are otherwise no longer expressed in the cell.
Gene duplicationPseudogeneEvolutionMutation

Question 7: Shared sequences of apparently non-functional DNA are a major line of evidence for ________.
Creation–evolution controversyBiologyEvolutionCommon descent

Question 8: Junk DNA, a term that was introduced in 1972 by Susumu Ohno,[6] is a provisional label for the portions of a ________ sequence of a for which no discernible function has been identified.
GeneGeneticsGenomicsGenome

Question 9: ________ are functional RNA molecules that are not translated into protein.
Messenger RNADNASmall nucleolar RNANon-coding RNA

Question 10: Cis-elements may be located in 5' or 3' untranslated regions or within ________.
RNAIntronPolyadenylationRNA splicing







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