EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Question
Chapter 9, Problem 2AAATB
Summary Introduction
To write:
The effects on a cell that undergoes a mutation to its RNA polymerase gene.
Introduction:
The RNA is a type of
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RNA polymerase from E. coli (core enzyme alone) has all of the following properties except:
a)requires all four ribonucleoside triphosphates and a DNA template.
b)can extend an RNA chain and initiate a new chain.
c)recognizes specific start signals in DNA.
d)produces an RNA polymer that begins with a 5'-triphosphate.
e)is required for the synthesis of mRNA, rRNA, and tRNA in E. coli.
Gene Expression:
14) Look at the diagram:
a) For each of the molecules in the diagram, identify what type of molecule
they are, and label their ends (3',5',N,C).
b) For each arrow, name the process and identify the major enzymes
involved.
c) Where do each of these activities take place in a bacterial cell? In a
eukaryotic cell? Draw a picture if it helps you explain it.
Process by which the DNA sequences encoding exons are exchanged and reordered through genetic recombination between DNA sequences encoding introns. Group of answer choices
a)RNA editing
b)Exon Definition
c) Exon Shuffling
d)Transesterification
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- if the following DNA sequence were transcribed, which of the following describes the output of this process? 3'- TCTGGACA-5' A. This would produce a protein that looks like 5'- A G A C C U G U -3' B. This would produce a tRNA that looks like 3'- A G AC C U G U -5' C. This would produce an mRNA that looks like this: 5'- A G AC C U G U -3' D. This would produce an mRNA that looks like 3'- U C U G G A CA -5' E. This would produce another strand of DNA that 0ok like 5-AG ACCT GT-3. ..arrow_forwardWhich is the coding strand? Which is the template strand? What is the direction of mRNA transcription by RNA-Polymerase for this gene?arrow_forwardThis is a list of molecular changes that could happen during DNA replication, transcription, mRNA processing, or translation. For each, determine whether or not the change will be passed down through generations of cells after it occurs. Explain your answer. C->G point mutation in the DNA of a coding region of a gene A->T point mutation in the noncoding region of a gene An error in transcription changes the mRNA sequence such that what was an amino acid-coding codon in the DNA sequence is now a stop codon in the mRNA sequence. An error in translation causes the amino acid alanine (nonpolar) to be replaced by the amino acid glutamic acid (polar and negatively charged).arrow_forward
- Consider the following segment of a template strand of DNA: Part A -ATA AGC TTC GAC- What is the mRNA produced for the segment? -UAU-UCG-AAG-CUC- Part B Complete previous part(s) • Part C What is the mRNA if a mutation changes AGC to AAC? Part D Complete previous part(s) Part E What is the MRNA produced if G is inserted at the beginning of the DNA segment?arrow_forwardif you have the following sequence of DNA 5' ATTGCGGAGCCTCGAT 3' do the following:arrow_forwardDate: Class: Name: Transcription Questions Answer the following questions. 1. What bases are found in RNA? 2. What bases are found in DNA? 3. Which strand is the messenger RNA complementary to? 4. Which strand is the messenger RNA nearly identical to? 5. What proteins help to direct the RNA Polymerase to the right location? 6. The end of a new nucleotide is always added to the end of an existing strand. 7. Distinguish between the following two terms: chromosome and gene. 8. Scientists have long referred to the DNA between genes as "junk DNA". But as scientists study the genome, they discover new and unique reasons why this DNA is not really "junk". Using internet resources, research 2 functions for sections of DNA in between genes. Describe your findings below. C) 2015 Bethany Lau.arrow_forward
- In bacterial genes, as soon as any partial mRNA transcript is produced by the RNA polymerase system, the ribosome assembles on it and starts translating. Draw a diagram of this process, identifying 5′ and 3′ ends of mRNA, the COOH and NH2 ends of the protein, the RNA polymerase, and at least one ribosome. Why couldn’t this system work in eukaryotes?arrow_forwardThe diagram below shows a section of double-stranded DNA undergoing both transcription and replication. RNA polymerase (gray oval) is bound to the transcriptional template strand and moving from left to right (arrow). The resulting RNA transcript is also shown (dotted line) with limited base pairing to the template strand. The DNA sequence is specified for a portion of the double-stranded DNA.arrow_forwarda. Propose three different mutations to prevent initiation, elongation, and termination of bacterial DNA replication, respectively. Explain how/why each mutation would prevent its respective step. (Hint: mutations can be in genes that encode proteins or regulatory DNA sequences) b. In the early 1900s, Avery, MacLeod, and McCarty performed an experiment in bacterial cells to determine whether DNA, RNA, or protein functions as the 'transforming molecule' (i.e. the genetic material). In your own words, how did their experiment (depicted in the figure below) help to answer that question?arrow_forward
- Convert the DNA template to mRNA. Then,convert the mRNA to tRNA. Based from theresulting sequence in the anticodons of tRNA,determine the appropriate Amino acid sequence that will be synthesized. Refer to the genetic code.1. DNA Template: TAC-GGC-TAC-CAT-ATG-GAGmrNa:tRNA:Amino acid sequence: 2. DNA Template: TTA-CAT-CAT-ATC-GAT-GACmrNA:tRNA:Amino acid sequence: 3. DNA Template: CTA-GCG- ATA - AAA-TTT-ATTmrNa:tRNA:Amino acid sequence:arrow_forwardThe diagram below shows a section of double-stranded DNA undergoing both transcription and replication. RNA polymerase (gray oval) is bound to the transcriptional template strand and moving from left to right (arrow). The resulting RNA transcript is also shown (dotted line) with limited base pairing to the template strand. The DNA sequence is specified for a portion of the double-stranded DNA. IMAGE a. Indicate whether point C is a 5' end or a 3' end of a nucleic acid. b. Indicate which strand (upper or lower) is the template for lagging strand synthesis c. Indicate the nucleotide sequence of the RNA that was transcribed from the DNA region specified by the sequence. Label the 5' and 3' ends of this sequence.arrow_forwardA cell has a mutated mediator protein. a) How will this affect transcription of genes? (circle an answer below) No transcription Weak transcription will occur Strong transcription will occur b) Why? Describe your choice abovearrow_forward
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