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Bio study rec chapter 17

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1. In eukaryotic cells, transcription cannot begin untila. the two DNA strands have completely separated andexposed the promoter.b. several transcription factors have bound to the promoter.c. the 5′ caps are removed from the mRNA.d. the DNA introns are removed from the template.e. DNA nucleases have isolated the transcription unit.2. Which of the following is not true of a codon?a. It consists of three nucleotides.b. It may code for the same amino acid as another codon.c. It never codes for more than one amino acid.d. It extends from one end of a tRNA molecule.e. It is the basic unit of the genetic code.3. The anticodon of a particular tRNA molecule isa. complementary to the corresponding mRNA codon.b. complementary to the corresponding triplet in rRNA.c. the part of tRNA that bonds to a specific amino acid.d. changeable. depending on the amino acid that attaches tothe tRNA.e. catalytic, making the tRNA a ribozym

 
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