The imprinting center is found in the promoter region of a non-coding gene called SNRPN. Based...
The imprinting center is found in the promoter region of a non-coding gene called SNRPN. Based on the differences in modifications between the two copies of chromosome 15 in imprinted cells, which of the following statements about SNRPN would be true?
The maternal copy of SNRPN is more highly expressed than the paternal copy.
The paternal copy of SNRPN is more highly expressed than the maternal copy.
Both copies of SNRPN are highly expressed.
Both copies of SNRPN are silenced.
Homework Answers
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The imprinting center is found in the promoter region of a
non-coding gene called SNRPN. Based...
In these imprinted cells, the SNRPN transcript overlaps with another gene, called UBE3A, which is transcribed...
In these imprinted cells, the SNRPN transcript overlaps with another gene, called UBE3A, which is transcribed in the opposite direction. This means that the region that the RNA polymerase transcribes in these two genes actually overlaps; in some cases, overlapping transcription in opposite directions leads to transcriptional interference, meaning that collisions between the polymerases traveling in opposite directions can interfere with transcription. It is believed that this takes place in this case, meaning that the more SNRPN transcription occurs, the...
Could you please provide the best answer for following MCQs. Thank you. Question 1 The imprinting...
Could you please provide the best answer for following MCQs. Thank you. Question 1 The imprinting control region is best defined as a promoter that regulates the expression of MeCP2 a sequence that can be methylated or unmethylated to control the expression of one or more genes by regulating promoter-enhancer interactions a sequence that when unmethylated can bind RNA polymerase II to induce promoter activation an enhancer that is inhibited when methylated Question 2 Imprinting is best described as a...
33. Which of the following conditions are necessary for a gene to be expressed? A. condensed...
33. Which of the following conditions are necessary for a gene to be expressed? A. condensed chromatin with DNA tightly coiled around nucleosomes B. open chromatin making the gene available for transcription C. specific signals from the environment D. active retrotransposons E. Both A and C are true F. Both B and C are true G. all of the above 34. Which of the following histone modifications results in more open chromatin? A. methylation B. acetylation C. restriction enzyme digest...
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28. Genes found in segments of chromosome called heterochromatin would likely be expressed at high levels. expressed at low levels, or not at all. deleted before replication. maternally inherited only. none of these 29. (Use this representation to answer the following question.) DNA template strand 5 3' DNA complementary strand 3' 5' Using the double-stranded molecule above, in which direction does the RNA polymerase enzyme move? 3' → 5' along the template strand 5'...
1 What is an imprinted gene? Select one: a. A gene that is found on a...
1 What is an imprinted gene? Select one: a. A gene that is found on a Barr body b. A gene that is silenced upon inheritance from a designated parent c. A gene that is inherited from only one parent d. A gene that is encoded on only one of the two copies of a chromosome Question 2 Which of the following is NOT a typical characteristic of cancer? Select one: a. Malignant cancers are typically not able to metastasize...
What were the technologies that had to exist for this technology to be developed? What technologies were developed to su...
What were the technologies that had to exist for this technology to be developed? What technologies were developed to support? Who developed the technologies? Mouse pups with same-sex parents born in China using stem cells and gene editing Researchers at the Chinese Academy of Sciences were able to produce healthy mice with two mothers that went on to have normal offspring of their own. Mice from two dads were also born but only survived for a couple of days. The...
all these questions have more than one correct answers 1) Meiosis & mitosis have similarities as...
all these questions have more than one correct answers 1) Meiosis & mitosis have similarities as well as differences. Which of the following represent similarities? a) Both increases genetic variation b) Both change in chromosomes number in daughter cells c) Both only occur in eukaryotes D) DNA replication must occur prior to both e) Both make use of a spindle to separate chromatids 2) Meiosis is a special form of cell division. Select any of the following that applies to...
please answer as much of the questions as you can and not only one question: 1....
please answer as much of the questions as you can and not only
one question:
1. What is the pseudoautosomal region?
The region on the Y chromosome where the male-determining gene
is found
The region on the X chromosome where the female-determining gene
is found
A region on the Y chromosome where the gene, when mutated,
causes androgen insensitivity syndrome
A region at which the X and Y chromosomes both have copies of
the same genes
A region at which...
answer all the questions 1) All of the following contribute to promoter binding by RNA polymerase...
answer all the questions
1) All of the following contribute to promoter binding by RNA polymerase I in bacteria except: a)-10 consensus sequence b)-35 consensus sequence c) rho factor d) sigma factor e) none of the above 2) Common structural changes or lesions found in DNA after exposure to ultraviolet light are: a) thymine dimers b) cytosine dimers c) purine dimers d) adenine dimers e) none of the above 3) What is the function of the sigma subunit in the...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dyst...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
33. Which of the following conditions are necessary for a gene to be expressed? A. condensed chromatin with DNA tightly coiled around nucleosomes B. open chromatin making the gene available for transcription C. specific signals from the environment D. active retrotransposons E. Both A and C are true F. Both B and C are true G. all of the above 34. Which of the following histone modifications results in more open chromatin? A. methylation B. acetylation C. restriction enzyme digest...
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30
31
32
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28. Genes found in segments of chromosome called heterochromatin would likely be expressed at high levels. expressed at low levels, or not at all. deleted before replication. maternally inherited only. none of these 29. (Use this representation to answer the following question.) DNA template strand 5 3' DNA complementary strand 3' 5' Using the double-stranded molecule above, in which direction does the RNA polymerase enzyme move? 3' → 5' along the template strand 5'...
please answer as much of the questions as you can and not only
one question:
1. What is the pseudoautosomal region?
The region on the Y chromosome where the male-determining gene
is found
The region on the X chromosome where the female-determining gene
is found
A region on the Y chromosome where the gene, when mutated,
causes androgen insensitivity syndrome
A region at which the X and Y chromosomes both have copies of
the same genes
A region at which...
answer all the questions
1) All of the following contribute to promoter binding by RNA polymerase I in bacteria except: a)-10 consensus sequence b)-35 consensus sequence c) rho factor d) sigma factor e) none of the above 2) Common structural changes or lesions found in DNA after exposure to ultraviolet light are: a) thymine dimers b) cytosine dimers c) purine dimers d) adenine dimers e) none of the above 3) What is the function of the sigma subunit in the...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
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