BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
6th Edition
ISBN: 9781323907634
Author: BELK
Publisher: PEARSON
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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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If our DNA contains all the information about who we are, how can something that does not involve changing the gene sequence cause changes in phenotypes?
Please answer this immediately. Thank you!
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
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1.08 Unit Test: Gene Expression - Part 1
Which statement is most accurate?
Hair is different from kidneys because the cells that make up hair and kidneys have different genes
All cells have the same genes, but different genes are active in different cells.
As cells and tissues differentiate, they produce new genes.
All cells have the same genes, and all of a cell's genes are active at the same time.
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Chapter 9 Solutions
BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
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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- 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).arrow_forwardNot make to copy or incorrectly do. Else downvote.arrow_forwardTrue or false If epigenetic marks were irreversible, it would be impossible to clone an animal from one of its somatic cell nuclei.arrow_forward
- The 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_forwardIn cancerous cells, CpG islands are: where intercalating agents are found demethylated methylatedarrow_forwardThis is not a writing assignment. The information is given. I’m confused for this since there are 3 parts associated with the question.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_forward27. Once created, new combinations of genes will be acted upon by ________________________________.arrow_forwardanswer all questions please.arrow_forward
- True or false? The most common form of Down's Syndrome results from a spontaneous, somatic, gene mutation.arrow_forwardThe Meeting Sarah stared blankly at the blue paisley wallpaper. Her husband Mike sat by her side, bending and unbending a small paper clip. “Sarah and Michael, it’s good to meet you,” welcomed the genetic counselor, as she entered the room. “I apologize for being late, but I was just meeting with another couple. Let’s see, you’d like to have a child, but you’re concerned because of your family history of cystic fibrosis.” “Yes,” Sarah replied softly. “Mike and I met at a CF support group meeting a few years ago. He had a younger brother who died of cystic fibrosis, and I had a younger sister. We saw the painful lives they had—difficulty breathing, the constant respiratory infections. Although the treatments for CF are better now, we just don’t know if we can…” she trailed off. “I can certainly understand your concern,” the genetic counselor responded sympathetically. “That’s where I hope to help, by providing as much information and advice as I can. I’m glad that you came to see me…arrow_forwardJekyll-Hyde Afflicted Spider Curse Afflicted Jekyll-Hyde/Spider Curse I O Human 1 II 1 III 4. Jekyll-Hyde disease is characterized by transformation into an unfeeling, aggressive, alter ego at night. While the "Spider Curse" is a disease that causes affected individuals to grow extra arms and extra eyes during a full moon. The genes responsible for these diseases sort independently and both traits run in one family. Based on the above pedigree answer the following questions: What is the mode of inheritance for Jekyll-Hyde disease? (Hint: look at individuals III-1 & III-3) O a. Autosomal Dominant O b. Autosomal Recessive O c. X-Linked Dominant O d. X-linked Recessive What evidence supports your hypothesis? Give at least 2 pieces of information from the pedigree that support your answer to 3a. Answer: 2. 3. 2. 2.arrow_forward
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