choose the correct answer 7. The difference between prokaryotic rho-dependent te
ID: 266445 • Letter: C
Question
choose the correct answer
7. The difference between prokaryotic rho-dependent termination and rho-independent termination is that rho-dependent termination requires a poly-U sequence in the mRNA b. False a. True 8. Which of the following does not occur before a eukaryotic mRNA is exported from the nucleus? a. The ribosome binds to the mRNA b. The mRNA is polyadenylated at its 3' end c. 7-methylguanosine is added in a 5'-to-5' linkage to the mRNA. d. RNA polymerase dissociates 9. Genes in eukaryotic cells often have intronic sequences coded for within the DNA. These sequences are ultimately not translated into proteins. Why? a. Intronic sequences are removed from RNA molecules by the spliceosome, which works in the nucleus b. Introns are not transcribed by RNA polymerase c. Introns are removed by catalytic RNAs in the cytoplasm d. The ribosome will skip over intron sequences when translating RNA into protein 10. Which of the following statements about eukaryotic translation quality control mechanisms are TRUE? a. Defective translation complexes cause ribosomes to stall when translating mRNA b. Stalled ribosomes are caused by defects in the mRNA, the translational machinery, or the nascent polypeptide The quality control pathways promote disassembly of the translation complex, and recycling or degradation of the mRNA, ribosome, and nascent polypeptide All the statements are true None of the statements are true c. d. e. 11. Which of the following are NOT true regarding the differences between DNA Polymerase and RNA Polymerase? RNA Polymerase has a higher error rate than DNA Polymerase DNA Polymerase requires a primer-template junction to initiate synthesis; RNA Polymerase does not DNA Polymerase uses deoxyribonucleotides as building blocks; RNA Polymerase uses ribonucleotides a. b. c. d. All the above are trueExplanation / Answer
ANSWER 7.
b. False
ANSWER 8.
a. The ribosome binds to the mRNA
ANSWER 9.
a. Intronic sequences are removed from RNA molecues by the splicesome, which works in the nucleus
ANSWER 10.
d. All the statements are true
ANSWER 11.
d. All the above are true
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