BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 15, Problem 6A
An inversion will
a. necessarily cause a mutant
b. only cause a mutant phenotype if the inversion breakpoints fall within a gene.
c. halt transcription in the inverted region because the chromosome is now backward.
d. interfere with translation of genes in the inverted region.
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fill in the blank:
a. lincRNA plays a role in regulating ___ making genes but they themselves are encoded in the genome that is considered _____ DNA.
b. The most well known example of RNA regulating the expression of DNA is the production of the ___ that coats one copy of the X chromosome in a female forming the ____.
What would the correct answer be, please choose letter option and explain
a. Use circles for activators and squares for repressors. Draw the shapes bound to each promoter region.
b. Under the word gene write “ON” or “OFF” to indicate if the gene is transcribed or not under the different conditions.
Chapter 15 Solutions
BIOLOGY
Ch. 15.1 - Prob. 1LOCh. 15.1 - Prob. 2LOCh. 15.1 - List the roles played by RNA in gene expression.Ch. 15.2 - Prob. 1LOCh. 15.2 - Describe the characteristics of the genetic code.Ch. 15.2 - Prob. 3LOCh. 15.3 - Prob. 1LOCh. 15.3 - Differentiate among initiation, elongation, and...Ch. 15.3 - Prob. 3LOCh. 15.4 - Prob. 1LO
Ch. 15.4 - Prob. 2LOCh. 15.4 - Explain the differences between bacterial and...Ch. 15.5 - Prob. 1LOCh. 15.5 - Prob. 2LOCh. 15.5 - Prob. 3LOCh. 15.6 - Explain why the tRNA charging reaction is critical...Ch. 15.6 - Prob. 2LOCh. 15.7 - Prob. 1LOCh. 15.7 - Prob. 2LOCh. 15.7 - Compare translation on the RER and in the...Ch. 15.9 - Prob. 1LOCh. 15.9 - Explain the nature of triplet repeat expansion.Ch. 15.9 - Prob. 3LOCh. 15 - Prob. 1DACh. 15 - Prob. 2DACh. 15 - Prob. 1IQCh. 15 - Prob. 2IQCh. 15 - Prob. 3IQCh. 15 - The experiments with nutritional mutants in...Ch. 15 - What is the central dogma of molecular biology? a....Ch. 15 - In the genetic code, one codon a. consists of...Ch. 15 - Eukaryotic transcription differs from prokaryotic...Ch. 15 - An anticodon would be found on which of the...Ch. 15 - RNA polymerase binds to a ________ to initiate...Ch. 15 - During translation, the codon in mRNA is actually...Ch. 15 - You have mutants that all affect the same...Ch. 15 - The splicing process a. occurs in prokaryotes. b....Ch. 15 - The enzyme that forms peptide bonds is called...Ch. 15 - In comparing gene expression in prokaryotes and...Ch. 15 - The codon CCA could be mutated to produce a. a...Ch. 15 - An inversion will a. necessarily cause a mutant...Ch. 15 - What is the relationship between mutations and...Ch. 15 - Prob. 1SCh. 15 - Frameshift mutations often result in truncated...Ch. 15 - Describe how each of the following mutations will...Ch. 15 - There are a number of features that are unique 10...
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- . Dosage compensation is necessary because a. some regions of the genome contain more genes than others.b. genes near heterochromatin tend to be silenced. c. enhancers can activate transcription whether they are upstream or downstream of a gene. d. genes on the X chromosome have twice as many copies in females as in malesarrow_forwardWhich of the following does NOT pertain to the myoblast-determining gene 1?*a. It is a master gene.b. It is a silencing gene.c. It produces a transactivating protein.d. It activates its own gene. Gene silencing involves which type of histone modification?* a. acetylation of histone 4 b. dimethylation of histone 3 c. trimethylation of histone 4 d. trimethylation of histone 3 Given the required environment, the totipotency of the nucleus can allow which of the following?* a. a committed cell to undergo dedifferentiation b. a committed cell to undergo terminal differentiation c. a terminally differentiated cell to produce a complete organism d. a terminally differentiated cell to produce specific types of tissues An induced pluripotent cell is described by which of the following?* a. It is a committed cell that undergoes redifferentiation. b. It is a committed cell that undergoes dedifferentiation. c. It is a terminally…arrow_forwardHow would each of the following types of mutations affect proteinfunction or the amount of functional protein that is expressed froma gene?A. Nonsense mutationB. Missense mutationC. Up promoter mutationD. Mutation that affects splicingarrow_forward
- Which of the following is NOT a mechanism of control of gene expression Group of answer choices a. Co-dominance b. mRNA transport c. DNA Methylation d. Control of translation e. Control of transcriptionarrow_forwardIn eukaryotes, chromatin remodeling plays an important role is gene regulation. This is because a. repositioning of the nucleosomes makes DNA accessible to transcription regulatory proteins b. the nucleosomes contain important regulatory regions c. chromatin remodeling activates gene expression d. chromatin remodeling represses gene expressionarrow_forwardA researcher has identified a mutant strain of yeast whose histones are unable to be acetylated. Which of the following is the MOST reasonable prediction for how the phenotype of this mutant yeast will differ from the phenotype of yeast cells with acetylated histones? A. The mutant will grow more rapidly. B. The mutant will grow much more slowly. C. The mutant will show decreased levels of gene expression. D. The mutant will show increased levels of gene expression.arrow_forward
- A transcription factor (protein - orange/green) is bound to a promoter of a gene (DNA - blue) it regulates. What changes would result in the gene not being expressed? A. Mutations in the DNA sequence where the TF is bound B. Mutations in the DNA binding domain of the TF C. Mutations in the 3’UTR (untranslated region) of this gene A and B only B and C only A, B, and Carrow_forwardEpigenesis relating to genetics refers to which of the following A. Genetic information is limited to what we inherit only from our biological parents. B. Genes are not influenced by environmental factors. C. Genes we inherit are fully expressed at birth. D. Genes are turned on or off as needed, by the developing body or environmental triggers, across the life-spanarrow_forwardThe underlying cause(s) of epigenetic changes associated withcancer may bea. mutations in genes that encode chromatin-modifyingproteins.b. environmental agents that alter the function of chromatinmodifyingproteins.c. mutations in genes that encode proteins that directly acceleratecell growth.d. all of the above.e. both a and b.arrow_forward
- helparrow_forwardHow can methylation affect transcription? a. It may prevent the binding of regulatory transcription factors. b. It may enhance the binding of regulatory transcription factors. c. It may attract methyl-CpG-binding proteins, which inhibit transcription, to bind to a methylated sequence. d. All of the above are possible ways for methylation to affect transcriptionarrow_forwardA cell is homozygous for a LOF mutation in the histone acetyltransferase (HAT) gene. Which of the following is/are true? a. Chromatin in the cell will be more condensed than usual, decreasing expression of genes that should be expressed. b. This will lead to histones with more positive charges on their tails, increasing the interaction between histones and the DNA backbone. c. This will lead to a decrease in DNA methylation and therefore cause an increase in gene expression. d. Chromatin in the cell will be less condensed than usual, increasing expression of genes that should not be expressed.arrow_forward
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