II.DNACapsid-VIRUSHOST CELLViral DNAmRNA wwViral DNACapsidproteinsIII.IV.Viral reproductive cycleIn the figure, what enzyme is utilized to synthesize mRNA (arrow marked III)?00000Viral DNA polymeraseHost cell DNA polymeraseReverse transcriptaseViral RNA polymerasesHost cell RNA polymerase

Based on the context provided in your figure, the enzyme utilized to synthesize mRNA (arrow marked…

Answered: II. DNA Capsid- VIRUS HOST CELL Viral…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter29: Transcription And The Regulation Of Gene Expression

Section: Chapter Questions

Problem 17P

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Match the terms with the best description. ______ genetic message a. protein-coding segment ______ promoter b. transcription begins here ______ polysome c. read as base triplets ______ exon d. removed before translation ______ genetic code e. occurs only in groups ______ intron f. 64 codons ______ anticodon g. destroys ribosomes ______ RIP h. often causes a frameshift ______ deletion i. enzymatic RNA ______ rRNA j. binds to a codon
A chromosome contains many different genes that are transcribed into different ___ . a. proteins b. polypeptides c. RNAs d. a and b
The binding of _____ is required for transcription to start. a protein DNA polymerase RNA polymerase a transcription factor
Match the terms with the best description. __ genetic message a. protein-coding segment __ promoter b. KN A polymerase binding site __ polysome c. read as base triplets __ exon d. removed before translation __ genetic code e. occurs only in groups __ intron f. complete set of 64 codons
What transcripts will be most affected by low levels of a-amanitin? 18S and 28S rRNAs pre-m RNAs 5S rRNAs and tRNAs other small nuclear RNAs
Multiple Replication Forks in E. coli II On the basis of Figure 28.2, draw a simple diagram illustrating replication of the circular E. coli chromosome (a) at an early stage, (b) when one-third completed, (c) when two-thirds completed, and (d) when almost finished, assuming the initiation of replication at oriC has occurred only once. Then, draw a diagram showing the E. coli chromosome in problem 3 where the E. coli cell is dividing every 20 minutes.
Which of the following sequences on a DNA molecule would be complementary to GCTTATAT? TAGGCGCG ATCCGCGC CGAATATA TGCCTCTC
In eukaryotes, what is the DNA wrapped around? single-stranded binding proteins sliding clamp polymerase histones
Which of the following is not a true statement comparing prokaryotic and eukaryotic DNA replication? Both eukaryotic and prokaryotic DNA polymerases build off RNA primers made by primase Eukaryotic DNA replication requires multiple replication forks, while prokaryotic replication uses a single origin to rapidly replicate the entire genome DNA replication always occurs in the nucleus Eukaryotic DNA replication involves more polymerases than prokaryotic replication.
Review Figures 8.12 and 8.13. In cells, the primers for DNA synthesis are short strands of RNA, so each newly-synthesized strand of DNA has a segment of RNA al its 5 end. As replication proceeds, DNA polymerases remove these RNA segments and fill in the resulting gaps with DNA. However, the gaps at the very 5 ends of the new strands cannot be filled in with DNA. Why not? DNA replication leaves exposed about 100 nucleotides al the 5 end of each template strand, and these single-stranded ends are removed. What are the effects of this "end problem" on a cell's DNA as it continues to divide? FIGURE 8.12 DNA replication. Green arrows show the direction of synthesis for each strand. The Y-shaped structure where the DNA molecule is being unwound is called a replication fork. FIGURE 8.13 Discontinuous synthesis of DNA. This close-up of a replication fork shows that only one of the two new DNA strands is assembled continuously. The other is assembled in short segments.
In the Hershey-Chase experiment with bacteriophages, (a) harmless bacterial cells permanently transformed into virulent cells (b) DNA was shown to be the transforming factor of earlier bacterial transformation experiments (c) the replication of DNA was conclusively shown to be semiconservative (d) viral DNA was shown to enter bacterial cells and cause the production of new viruses within the bacteria (e) viruses injected their proteins, not their DNA, into bacterial cells
Match the terms appropriately. ______ bacteriophage a. nitrogen-containing base, sugar, phosphate group(s) ______ clone b. copy of an organism ______ nucleotide c. usually one-way ______ diploid d. injects DNA ______ DNA ligase e. seals gaps ______ mutation f. a pyrimidine ______ differentiation g. can cause cancer ______ cytosine h. something old, .something new ______ semiconservative replication i. two of each chromosome

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