Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 12, Problem 8TY
Summary Introduction
Introduction:
In eukaryotes gene expression is regulated by various epigenetic changes like methylation and acetylation. Epigenetic changes are inheritable changes in which DNA is modified but the
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Which of the following types of enzymes is primarily responsible for setting up the genetic code?
1.) Kinases
2.) DNA ligase
3.) DNA gyrase
4.) peptidyl transferase
5.) aminoacyl tRNA synthetases (charging enzymes)
Which of the following is least likely following translation termination?
The polypeptide is released.
The mRNA is reused.
The ribosome is reused.
The polypeptide is immediately active.
What type of genetic regulation seems to be the most similar between prokaryotes and eukaryotes?
Group of answer choices
RNA splicing regulation
transcriptional regulation
5'-capping regulation
intron/exon shuffling
poly-A tail addition
Chapter 12 Solutions
Principles of Biology
Ch. 12.1 - How does gene regulation underlie the different...Ch. 12.1 - Prob. 1TYKCh. 12.1 - The most common point of gene regulation in...Ch. 12.2 - Which genes are under the control of the lac...Ch. 12.2 - Prob. 2CCCh. 12.2 - Prob. 1BCCh. 12.2 - Prob. 1TYKCh. 12.3 - Prob. 1CCCh. 12.3 - Prob. 1TYKCh. 12.3 - Prob. 2TYK
Ch. 12.4 - Prob. 1CCCh. 12.4 - Prob. 1BCCh. 12.4 - A chromatin-remodeling complex may change the...Ch. 12.4 - Prob. 2TYKCh. 12.5 - What is the biological advantage of alternative...Ch. 12.5 - Prob. 2CCCh. 12.5 - Prob. 1TYKCh. 12.5 - Prob. 2TYKCh. 12 - Genes that are expressed at all times at...Ch. 12 - Prob. 2TYCh. 12 - Transcription factors that bind to DNA and...Ch. 12 - Prob. 4TYCh. 12 - Prob. 5TYCh. 12 - Prob. 6TYCh. 12 - Prob. 7TYCh. 12 - Prob. 8TYCh. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - What is the difference between inducible and...Ch. 12 - Transcriptional regulation often involves a...Ch. 12 - PRINCIPLES A principle of biology is that the...Ch. 12 - Discuss the advantages and disadvantages of...Ch. 12 - Prob. 2CBQ
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- Which one of the following features could you use to determine the length of the RNA that is produced based on the gene, before it is processed? The exon and intron sequences The promoter and enhancer sequences The start and stop codons for translation The transcription start and termination sequencesarrow_forwardWhich of the following statements are NOT true? A. Replication is the process of making DNA and takes place in the nucleus of prokaryotic cells. B. Translation produces a polypeptide that may require additional processing to become a functional protein C. Transcription starts at the promoter of eukaryotic cells and scans until reaches the start codon. D. Splicing results in exons being put together and introns being removedarrow_forwardWhich of the following, if any, cannot be genetically encoded in DNA? a)mRNA b)tRNA c)rRNA (RNA part of the ribosome) d)RNA parts of the spliceosomearrow_forward
- In order for transcription to occur, the DNA molecule must be "unzipped". Messenger RNA is then produced using one of the DNA strands as a template. As the mRNA lengthens, it separates from the DNA strand. The two DNA strands then come back together. True Falsearrow_forwardWhich of the following acts as the “transcript” during protein synthesis? DNA mRNA tRNA rRNAarrow_forwardProcess of translation *( Choose True if the statement is correct about Process of translation and False if otherwise ) includes covalent modification of some proteins participation of rRNA transfer RNA is made from messenger RNA tRNA uses information from mRNA to produce amino acid chainsarrow_forward
- Which of the following is true of the timing of RNA processing? The premise is false; mRNA processing does not occur in eukaryotes mRNA processing occurs in the cytosol after pre-mRNA is exported from the nucleus mRNA processing occurs co-transcriptionally mRNA processing occurs in the nucleus after transcription has terminatedarrow_forwardWhich of the following statements regarding the genetic code is false? The genetic code is nearly universal. Each codon codes for only one amino acid. Three different codons function to terminate translation. There is a single initiation codon. Each amino acid is encoded by a single codon.arrow_forwardWhich method is most likely used to regulate the expression of a gene that is active during embryonic development but then silenced for the rest of the life of the individual? Histone modification Post translational modifications Alternative Splicing Controlling RNA export from the nucleusarrow_forward
- Which process of gene regulation specifically effects the activity of a protein? DNA replication DNA transcription Post-translational modifications RNA processingarrow_forwardWhat part of a gene is important in initiating transcription? Promoter region Exons Introns Structural genearrow_forwardIndicate which of the following items are associated with transcription or translation. This could be in prokaryotes or eukaryotes, or both. Group of answer choices: Translation OR Transcription Sigma binds to the promoter mRNA binds to the small ribosomal subunit Spliceosomes remove introns and splice together exons Nucleotides are added from the 5' to 3' end tRNA anticodon binds to the corresponding mRNA codon STOP codon results in terminationarrow_forward
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