10. All of the following are true about prokaryotk DNA except a) prokayotie chro
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Question
10. All of the following are true about prokaryotk DNA except a) prokayotie chromosomes are circular b) thene is usually only one chromosome per cell c) the DNA is superooiled in -d) the DNA is arranged arcund histonesHisores o acids in None of the above are true. c) T hird acleic Which of the following statements is not true about transcription? 11. a) RNA polymerase can proofread and correct errors b) mRNA elongates in the 5-3' direction. ity to its c) As nucleotides are added to RNA, pyrophosphate (PP) is released. d) RNA transcripts are longer than final RNA e) None of the above here the ou will rform Assume you have isolated an intact gene from an extinct animal and you would like to see the protein encoded by that gene. You can't get this gene expressed in a bacterium because 12. a) Prokaryotic DNA is chemically diffierent from eukaryotic DNA b) Bacterial cells can't process eukaryotie RNA transcrips c) You don't have the correct transcription factors. Introns d) Bacterial ribosomes are too small to translate eukaryotic mRNA uring ny case enefits e) None of the above. Cell-free protein synthesis can be observed if the mitochondrial, cytosol, and endoplasmic reticulum (ER) fractions of cells are mixed together. The ER fraction can be replaced with 13. a) ribosomes b) amino acids. c) GTP and ATP d) NADH c) cell membranes nd Cytosine makes up 38% of the nucleotides in a sample of DNA from an organism, Approximately what percentage of the nucleotides in this sample will be thymine? 14, a) 12 b) 24 c) 31 d) 38 e) Can't tell. in ive 15. You use PCR to amplify a small piece of DNA that contains radioactively labeled phosphates P).After two replication cycles, what percentage of the resulting single strands of DNA have radioactive labels? a) 100% b) 75% c) 50% d) 25% ?)0%
Explanation / Answer
Answer for question number 10 : The statement which is not true with respect to prokaryotes is D.
Explanation : Histones are the highly basic proteins which are rich in basic amino acids such as lysine and arginine are found only in eukaryotes and plays a role in packaging of eukaryotic DNA into nucleosomes. However, prokaryotes also contains a similar proteins which are associated with bacterial nucleoid called HU proteins.
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