EBK BIOLOGY
6th Edition
ISBN: 9780134819150
Author: Maier
Publisher: VST
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Chapter 9, Problem 7LTB
Summary Introduction
Introduction:
The traits that are inherited by the organisms from the parents are called heritable traits. Epigenetics is a method that is used to study heritable traits. It involves changes in the functioning of the genetic material without altering the
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Specific environmental or nongenetic factors can cause epigenetic modifications. Identical twins have essentially the same DNA sequences; however, aging and significant lifestyle differences cause changes in _____ because:
Genomic imprinting
Histone modification
Chromatin structure
DNA methylation
Briefly explain this Statement "Treatment for the genetic disorders by using gene therapy " Please answer at your own words, please (400-500 words).
How can you envision using this new information? Discuss how things that we do to our bodies (smoking, recreational drugs, employment environments, stress levels, eating/drinking habits, etc.) can influence genetic expression in our future child(ren).
Chapter 9 Solutions
EBK BIOLOGY
Ch. 9 - Is a round yellow pea seed (genotype Rr Y y) an...Ch. 9 - What factors cause quantitative variation in a...Ch. 9 - The DNA profile below is from a mother, a father,...Ch. 9 - Prob. 4LTBCh. 9 - Prob. 5LTBCh. 9 - Prob. 6LTBCh. 9 - Prob. 7LTBCh. 9 - Prob. 8LTBCh. 9 - Add labels to the figure that follows, which...Ch. 9 - Prob. 10LTB
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- True or false If epigenetic marks were irreversible, it would be impossible to clone an animal from one of its somatic cell nuclei.arrow_forwardThe human phenotype is regulated by epigenetic control of gene expression. Discuss the three main types of epigenetic regulation, illustrating your answer with examples of diseases arising from impairment of each of these processes. 600 words.arrow_forward• ____________ add DNA to a chromosome and causemutant phenotypes either by increasing gene dosage orby changing the regulation of genes near a breakpoint.arrow_forward
- In cancerous cells, CpG islands are: where intercalating agents are found demethylated methylatedarrow_forwardEpigenetic changes in gene regulation are caused by ________. missing nucleotides or chromosomes missing nucleotides or chromosomes mutations of the nucleotide sequence mutations of the nucleotide sequence modifications to histones and the DNA, but not the nucleotide sequence itselfarrow_forwardWhich of the following statements does not accurately complete this statement: An epigenetic trait _________. can be passed from mother cell to daughter cell by mitosis can be passed to the next generation by meiosis is a change in the DNA sequence causes changes in gene expression All are accurate Of the following, which is a good example of epigenetic changes? methylation of DNA bases addition of acetyl groups to histones CpG islands imprinting of genes All are good examples of epigenetic changesarrow_forward
- The attenuator is an important regulatory sequence that influence gene expression. The attenuator is located within a region called the ______________________________.arrow_forwardDuchenne Muscular Dystrophy (DMD) is a disease that manifests in muscle weakness. It exhibits X-linked recessive inheritance pattern. The dystrophin gene is large and can have many different mutations along the DNA. From the following mutations between the gene sequence (DNA template strand) of a healthy male and an affected brother determine if they would affect the production of mRNA or the sequence of the protein. Base your analysis on the position of the mutation in the transcription unit, and the impact of the change on the codons. Mutation 1: Position -6 Healthy individual A Affected brother C Group of answer choices A. Normal mRNA, normal protein B. No mRNA produced (promoter affected) C. Abnormal mRNA, affected protein D. Normal mRNA, affected protein Base your analysis on the position of the mutation in the transcription unit, and the impact of the change on the codons.arrow_forwardIs ethical to kill an unborn child with a deadly genetic disorder? Why or why not?arrow_forward
- Genetic mutations are permanent. Do you agree or disagree? Defend your decision.arrow_forwardA defective gene on chromosome 15 causes Tay-Sachs disease. It is a central nervous system neurodegenerative disease that most often affects infants, though older children and adults can have late-onset forms of the disease. The defective gene prevents the body from making a protein called hexosaminidase A. Without, hexosaminidase A, chemicals called gangliosides build up in the nerve cells of the brain, destroying brain cells. Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row below that indicates the genotypes of individuals II-1, II-2, and III-1 is Select one: a. II-1 II-2 III-1 Aa Aa aa b. II-1 II-2 III-1 XAY XAXa XAXa c. II-1 II-2 III-1 XAY XAXA XaXa d. II-1 II-2 III-1 AA aa Aaarrow_forwardPlease Write a Brief Note on "Treatment for the genetic disorders by using gene therapy " Please write at your own words, please...arrow_forward
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