Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 4.5, Problem 3MQ
Summary Introduction
The synthesis of ribonucleic acid (RNA) from a specific segment of deoxyribonucleic acid (DNA) is known as transcription. The major three forms of RNAs are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All these RNA molecules are involved in protein synthesis. The genetic information present in the DNA sequence is transferred to protein molecules through mRNA. The mRNA molecule encodes the genetic information that is translated into a protein sequence using ribosomes.
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Chapter 4 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 4.1 - What is a genome and what is it composed of? What...Ch. 4.1 - Define the terms complementary and antiparallel as...Ch. 4.1 - Why is supercoiling essential to a bacterial cell?...Ch. 4.1 - Describe the central dogma of molecular biology....Ch. 4.2 - Approximately how large is the Escherichia coli...Ch. 4.2 - Prob. 2MQCh. 4.2 - Prob. 3MQCh. 4.2 - Prob. 1CRCh. 4.3 - Prob. 1MQCh. 4.3 - To which end (5 or 3) of a newly synthesized...
Ch. 4.3 - Prob. 3MQCh. 4.3 - What are the functions of DNA Pol I and III and...Ch. 4.3 - What is meant by the term semiconservative...Ch. 4.4 - Prob. 1MQCh. 4.4 - Prob. 2MQCh. 4.4 - Prob. 3MQCh. 4.4 - Prob. 1CRCh. 4.5 - What enzyme catalyzes transcription? What is a...Ch. 4.5 - Prob. 2MQCh. 4.5 - Prob. 3MQCh. 4.5 - Prob. 4MQCh. 4.5 - Prob. 1CRCh. 4.6 - What three major components make up an archaeal...Ch. 4.6 - Prob. 2MQCh. 4.6 - Prob. 3MQCh. 4.6 - How does the archaeal RNA polymerase differ from...Ch. 4.7 - Prob. 1MQCh. 4.7 - Differentiate between the different classes of...Ch. 4.7 - Prob. 3MQCh. 4.7 - Describe the two types of secondary structure a...Ch. 4.8 - Prob. 1MQCh. 4.8 - What is the function of the acceptor stem of a...Ch. 4.8 - Prob. 3MQCh. 4.8 - Prob. 1CRCh. 4.9 - Prob. 1MQCh. 4.9 - Prob. 2MQCh. 4.9 - Prob. 3MQCh. 4.9 - Why is the genetic code a degenerate code? What is...Ch. 4.10 - What are the components of a ribosome? What...Ch. 4.10 - How is a completed polypeptide chain released from...Ch. 4.10 - How does tmRNA free stalled ribosomes?Ch. 4.10 - Where on the ribosome do tRNAs bind, and what is...Ch. 4.11 - What are molecular chaperones and why are they...Ch. 4.11 - What macromolecules are protected by heat shock...Ch. 4.11 - How do chaperones assist the Escherichia coli cell...Ch. 4.11 - What proteins are involved in refolding misfolded...Ch. 4.12 - Prob. 1MQCh. 4.12 - Prob. 2MQCh. 4.12 - Prob. 3MQCh. 4.12 - Prob. 1CRCh. 4.13 - Prob. 1MQCh. 4.13 - Prob. 2MQCh. 4.13 - Prob. 3MQCh. 4.13 - Prob. 1CRCh. 4 - The genome of the bacterium Neisseria gonorrhoeae...Ch. 4 - Compare and contrast the activity of DNA and RNA...Ch. 4 - What would be the result (in terms of protein...
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- After sequencing a new genome for the first time, functional protein-coding genes are initially identified by: BLAST searches that look for viral integration in the host genome Bioinformatic searches that reveal consensus sequences in expressed genes Aligning expressed exons sequenced from cDNA using transcriptomics B and C A and B Many regions of non-coding eukaryotic DNA previously thought to be "junk" are now known to contain sequence elements important to regulating gene expression. What approach can be used to identify important non-coding regulatory regions when annotating a newly sequenced genome? comparing cDNA to genomic DNA to validate that the gene is expressed identifying restriction enzyme recognition sequences in the genome phylogenetic footprinting to identify conserved non-coding sequences searching for start/stop codons and splice recognition sites that predict where a gene might be located…arrow_forwardWhat modifications are observed in regions of the genome that are being actively transcribed? In regions that are not actively transcribed?arrow_forwardWhat is expressed sequence tag (EST)?arrow_forward
- Here is a eukaryotic gene. The numbers given are base pairs of exon and intron. How long in bases will the pre mRNA transcript be? Explain briefly. What is the maximum number of amino acids that could make up the protein product from the final mRNA? Explain briefly.arrow_forwardHow is it possible that alternative splicing can effectively increase the number of genes in the genome?arrow_forwardWhat is the general effect of methylation of a genomics region on transcription?arrow_forward
- Can numerous paralogs in a genome lead to genome expansion? and how?arrow_forwardRNA polymerase must detect and transcribe discrete genes from within large stretches of DNA. What marks the beginning of the unit to be transcribed?arrow_forwardHow many protein coding genes would expect to be affected if the mutations are distributed randomly?arrow_forward
- What is a transcriptome, a genome and a proteome. How do they differ and why is the term proteome ambiguous?arrow_forwardYou construct a translational reporter gene fusion of your favourite gene. How can you assess whether the translational fusion is functionally active?arrow_forwardWhat are single-stranded RNA fragments that associate with a protein complex to induce gene silencing by targeting specific mRNA for cleavage?arrow_forward
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