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26 Nov 2019

FIRST define genetic vs. epigenetic inheritance. THEN explain how do DNA mismatches effect genetic vs. epigenetic inheritance patterns?

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Sixta Kovacek
Sixta KovacekLv2
30 Aug 2019
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Related questions

1. Compare and contrast epigenetic, Mendelian genetic and Lamarckian theories of inheritance.

2. Discuss how it is possible that in your body, every cell has identical DNA and the same genes, yet these cells may have very different phenotypes and functions throughout the body (for example, in your body, a neuron and cardiac muscle cells have the same genes, yet very different functions and appearances).

1. how does royal jelly explain the epigenetic queen phenotype?

2. Methylation of DNA is the best understood mechanism of epigenetics; however epigenetic changes can also occur through modification of histone proteins. What are four things that can be added, post translationally, to histone proteins?

*Histone acetylation generally destabilizes structure; cause it to assume a more open configuration. Histone acetylation is associated with increased transcription.

*Histone methylation influence on transcription depends on context.

*Epigenetic effect of RNA molecules: Xist example

In what specific ways can chromatin structure be modified, and how do these modifications influence eukaryotic gene expression?

How can enhancers influence the transcription of genes that are really far away on the same chromosome? What is the molecular composition of an enhancer (which biomolecule, and where is the enhancer found)?

Genetic traits are passed from parent to offspring via DNA replication prior to cell division. However, epigenetic modifications do not have the same copying mechanism. How could an epigenetic trait be maintained throughout multiple generations? Provide at least two examples.

What would be the effect of moving the insulato to a position between enhancer II and the promoter for gene B?

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