Homework Answers
(3) Epigenetic regulation of the genome by DNA methylation occur on nucleotide base cytosines, induce structural changes in the chromatin and lead to transcriptional changes of different genes. DNA methylation is often referred to as a lifelong inhibitory change that induces gene silencing the expression of memory suppressor genes. For example Huntington’s disease (HD) patients a number of genes, such as Sox2 and Pax6, were found to be hypermethylated, and to have accordingly reduced gene expression levels.
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points) Epigenetic changes, such as hypermethylation of DNA, can persist for how long? (4) (12 points)...
Which of the following changes to DNA can be part of epigenetic regulation of gene expression?...
Which of the following changes to DNA can be part of epigenetic regulation of gene expression? Choose both correct answers. degradation of mRNA that is no longer needed methylation of DNA acetylation alternate mRNA splicing
Which of the following represent epigenetic changes caused by a pathogen that can affect its ability...
Which of the following represent epigenetic changes caused by a pathogen that can affect its ability to cause infection in the host? Check all that apply Activation or inactivation of host cell DNA Binding to RNAs that silence genes ロロロロロ Affect host cell DNA that is responsible for cytoskeleton organization Exchange of capsule genes between pathogen and host cell Secretion of endotoxin from the cell wall of a pathogen
Possible genetic modifications that can cause epigenetic changes in gene expression include: (Select all that apply)...
Possible genetic modifications that can cause epigenetic changes in gene expression include: (Select all that apply) DNA methylation chromosomal inversion. chromatin remodeling. histone acetylation. genomic imprinting. mRNA degradation. histone variant localization
1. Which epigenetic modification involves methylation? 2. How can we reverse epigenetic modifications? 3. Can epigenetics...
1. Which epigenetic modification involves methylation? 2. How can we reverse epigenetic modifications? 3. Can epigenetics be beneficial? How? 4. What is the difference between Prader Willy and Angelman syndromes? Can you please help me with this 4 questions
How do epigenetic traits differ from traditional genetic traits, such as the differences in color and...
How do epigenetic traits differ from traditional genetic traits, such as the differences in color and shape of peas that Mendel studied? A) Phenotype is stably inherited by offspring. B) Phenotype is not transmitted to offspring. C) New phenotype involves changes to the DNA sequence. D) New phenotype is caused by modifications to chromatin. E) Phenotype can be influenced by environmental factors.
Over the past 12 years epigenetics has been a new exciting field of research. Please explain...
Over the past 12 years epigenetics has been a new exciting field of research. Please explain what epigenetic inheritance is and how changes to your DNA (not mutations) in your lifetime can be passed to your children and grandchildren. Diet and lifestyle choices you make today can have a profound impact on gene expression in your future children and grandchildren. Use epigenetics to explain how and provide some examples of diet/lifestyle choices that can cause epigenetic changes.
Question 4-12 points Biologists use gel electrophoresis to sont DNA segments by size. DNA segments are...
Question 4-12 points Biologists use gel electrophoresis to sont DNA segments by size. DNA segments are placed at one end of a gel. DNA is negatively chargod (with a charge of two electrons per base pair). When you "run the gel" you are generating an electric field by connecting anodes and cathodes at the ends of the gel This causes the negatively charged DNA segments to move towards the positive electrode. After nunning the gel, smaller DNA segments have moved...
How is this "inheritance" passed to (11) What is meant by the term epigenetic inheritance? the daughter cells? You should have to use the word "histones" in this explanation. (4 point...
How is this "inheritance" passed to (11) What is meant by the term epigenetic inheritance? the daughter cells? You should have to use the word "histones" in this explanation. (4 points)
How is this "inheritance" passed to (11) What is meant by the term epigenetic inheritance? the daughter cells? You should have to use the word "histones" in this explanation. (4 points)
Below is a piece of a DNA strand. a How can you tell this is DNA...
Below is a piece of a DNA strand. a How can you tell this is DNA and not RNA? b Name the two bases shown. e Draw the coroplementary strand. Make sure to show the hydrogen bonding and draw the sugar phosphate bachyone.
can i ge thelp changing this to point mutation , insertion , deletion 1) DNA can...
can i ge thelp changing this to point mutation , insertion ,
deletion
1) DNA can be mutated in one of the three ways. A sample strand of DNA has been provided for you. Select whichever sites are appropriate and show how each type of mutation type would change the DNA by redrawing the newly mutated strand. Also, describe how each mutation changes the protein that is made from the resulting DNA. They are numbered for easy reference. A G...
Which of the following represent epigenetic changes caused by a pathogen that can affect its ability to cause infection in the host? Check all that apply Activation or inactivation of host cell DNA Binding to RNAs that silence genes ロロロロロ Affect host cell DNA that is responsible for cytoskeleton organization Exchange of capsule genes between pathogen and host cell Secretion of endotoxin from the cell wall of a pathogen
Possible genetic modifications that can cause epigenetic changes in gene expression include: (Select all that apply) DNA methylation chromosomal inversion. chromatin remodeling. histone acetylation. genomic imprinting. mRNA degradation. histone variant localization
Question 4-12 points Biologists use gel electrophoresis to sont DNA segments by size. DNA segments are placed at one end of a gel. DNA is negatively chargod (with a charge of two electrons per base pair). When you "run the gel" you are generating an electric field by connecting anodes and cathodes at the ends of the gel This causes the negatively charged DNA segments to move towards the positive electrode. After nunning the gel, smaller DNA segments have moved...
How is this "inheritance" passed to (11) What is meant by the term epigenetic inheritance? the daughter cells? You should have to use the word "histones" in this explanation. (4 points)
How is this "inheritance" passed to (11) What is meant by the term epigenetic inheritance? the daughter cells? You should have to use the word "histones" in this explanation. (4 points)
Below is a piece of a DNA strand. a How can you tell this is DNA and not RNA? b Name the two bases shown. e Draw the coroplementary strand. Make sure to show the hydrogen bonding and draw the sugar phosphate bachyone.
can i ge thelp changing this to point mutation , insertion ,
deletion
1) DNA can be mutated in one of the three ways. A sample strand of DNA has been provided for you. Select whichever sites are appropriate and show how each type of mutation type would change the DNA by redrawing the newly mutated strand. Also, describe how each mutation changes the protein that is made from the resulting DNA. They are numbered for easy reference. A G...
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