LO69 Identify whether a trait is epigenetic or genetic given an example. It has been shown that salmon reared in hatchery when released to the wild have reduced fitness. Studies have found that there are no changes between the genetic information between salmon grown in hatchery and wild salmon that are from the same river. It has been noted that the hatchery environment causes hypermethylation of DNA in areas associated with ion homeostasis, synaptic and neuromuscular regulations and immune and stress response. Changes persisted in five generations. Based on the information presented this is an example of: Genetic effect Transcriptional effect Epigenetic effect Adverse effect Environmental effect

LO69 Identify whether a trait is epigenetic or genetic given an example. It has been shown that salmon reared in hatchery when released to the wild have reduced fitness. Studies have found that there are no changes between the genetic information between salmon grown in hatchery and wild salmon that are from the same river. It has been noted that the hatchery environment causes hypermethylation of DNA in areas associated with ion homeostasis, synaptic and neuromuscular regulations and immune and stress response. Changes persisted in five generations. Based on the information presented this is an example of: Genetic effect Transcriptional effect Epigenetic effect Adverse effect Environmental effect

Name: 69. LO69 Identify whether a trait is epigenetic or genetic given an ex
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Description: 69. LO69 Identify whether a trait is epigenetic or genetic given an example.It has been shown that salmon reared in hatchery when released to the wild have reduced fitness. Studies have found that there are nochanges between the genetic information b

Nutrition Now

8th Edition

ISBN:9781337415408

Author:Brown

Publisher:Brown

Chapter26: Nutrient–gene Interactions In Health And Disease

Section: Chapter Questions

Problem 12RQ

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LO70 Identify whether a trait is influenced by the environment or not given an example. Squirrels exposed to pesticides present demethylation of genes associated with heart disease which is passed on to future generations even when they have not been exposed to pesticides. This scenario is a result of: Epigenetics and the environment because the exposure to pesticides influences the methylation of the gene The environment because the exposure to pesticides influences the expression of the gene Epigenetics because the expression of the gene depends on the exposure of the pesticide and methylation pattern Genetics because the methylation of the gene determines its expression
LO74 Explain how epigenetic markers are inherited. How do epigenetic marks compare in monozygotic twins? They stay the same throughout their lives because monozygotic twins are genetically identical. They are similar early in life but are increasingly dissimilar with age. DNA methylation patterns are similar, but histone acetylation patterns are very different. They are different at birth, but a similar environment during childhood causes them to become more similar with time.
LO 68 Identify the elements that make an epigenetic trait. Which of the following elements is necessary for an epigenetic effect to take place? Inheritance of the modification to offspring A modification in gene expression A modification of the nucleotide sequence A modification of the RNA sequence Environmental influence A mutation Inheritance of the modification
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"Tobacco smoking triggers a large number of somaticmutations and epigenetic changes". Define about this ?
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