Discussion: Epigenetics and Genetic Screening

User Generated

Qryvfn

Humanities

Walden University

Description

Epigenetic influences mean that genetic expression can only be fully understood in the context of environment. Likewise, environmental influences may be quite different depending on the particular genes that are present. The intertwined effects of experience and gene expression have implications far beyond the theoretical questions of how cells in the developing brain interact with one another. As society approaches the era when anyone might be able to have their entire genome decoded for a modest price, and scientists learn more about which genetic variants can increase or decrease the risk of mental health disorders, there is a greater need for understanding how genes can impact the human mind. Many factors influence gene expression, but epigenetics provides a potential link between the environment and changes to gene expression.

In this Discussion, you will describe how information stored in a gene influences behavior and how environment and experience can impact the rate of gene expression. You will also consider the ethical implications of screening for genetic medical or psychological disorders.

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To prepare:

  • Review this week’s Learning Resources and pay particular attention to what genes are, how they affect behavior, and how epigenetics affects gene expression.
  • As you are reading, think about the ethical considerations of using genetic screening for disorders.

By Day 3

Post a response to the following:

  • Define what a gene is.
  • Describe how information stored in a gene can become a protein that influences behavior (transcription and translation).
  • Summarize what is meant by epigenetics and describe how these modifications to the DNA can increase or decrease the rate of gene expression.
  • Identify and describe two ethical considerations when using genetic screening for medical and psychological disorders.

Support your posting with specific references from literature in the Walden Library and Learning Resources. Zero plagiarizing, Quote wprk. No.coms

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Explanation & Answer

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Running head: EPIGENETICS AND GENETIC SCREENING

Epigenetics and Genetic Screening
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EPIGENETICS AND GENETIC SCREENING

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Epigenetics and Genetic Screening
Definition of “Gene”
The term “gene” has gone through decades of redefinition, with changing phases
of genetics. Initially, “genes” were defined basically as “units of inheritance,” but the term
gradually grew in complexity. Today, most literature defines “gene” as systems of genetic
information contained in a locus, which function by synthesizing proteins.
How Genes Influence Behavior
The sequence of packaging of protein pairs, like H3 and H4, located around
DNA influences the accessibility to methylation and transcription mechanisms and factors.
Furthermore, post-translational frameworks modify chromatin make-up, which, in turn,
regulates transcription (Barter & Foster, 2018). Smaller variations...


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