MicroRNAs (miRNAs) act: Group of answer choices A. at the level of transcription to negatively regulate...
MicroRNAs (miRNAs) act:
Group of answer choices
A. at the level of transcription to negatively regulate gene expression
B. at the level of translation to positively regulate gene expression
C. at the level of translation to negatively regulate gene expression
D. at the level of transcription to positively regulate gene expression
Homework Answers
Answer:- (c) at the leve of translation to negatively regulate gene expression.
MicroRNAs (miRNAs) are omnipresent, and control most biological functions. MiRNAs function in silencing RNA as small guide molecules by negatively controlling the expression of multiple genes at both mRNA and protein levels, by degrading their mRNA target and/or by silencing translation.
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MicroRNAs (miRNAs) act:
Group of answer choices
A. at the level of transcription to negatively regulate...
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription...
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level(after transcription/formation of the immature mRNA molecule), or both. 1. Addition of the signal-recognition particle (SRP) 2. DNA methylation 3. Enhancers or insulators
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription...
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level (after transcription/formation of the immature mRNA molecule), or both. 1. Alternative splicing 2. Chromatin remodeling 3. RNAi 12pt v Paragraph Β Ι Ο Α ev T²w ...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can not efficiently carry oxygen to body tissues. a- thalassemia occurs when the HBA1 gene is mutant such that no protein product is made or a non-functional protein is produced. Recently, microRNAs have been implicated in regulating expression of the HBA1 gene. Below is microarray data showing the amount of expression of different microRNAs where each row corresponds to the different miRNA indicated on the...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can not efficiently carry oxygen to body tissues. a-thalassemia occurs when the HBA1 gene is mutant such that no protein product is made or a non- functional protein is produced. Recently, microRNAs have been implicated in regulating expression of the HBA1 gene. Below is microarray data showing the amount of expression of different microRNAs where each row corresponds to the different miRNA indicated on the...
A promotor is used by RNA polymerase during which stage of transcription? Group of answer choices...
A promotor is used by RNA polymerase during which stage of transcription? Group of answer choices A. Initiation B. Elongation C. Termination D. Promotion 2. In eukaryotic cells, mRNA is modified in several ways. Match the mRNA modifications to their functions. Group of answer choices [ Choose ] Portions of the mRNA that are removed before translation. Helps ribosomes attach to the mRNA. Depending on the length, this structure can help...
Riboswitch is a mechanism of gene activity regulation by mRNA conformation. Riboswitch can regulate ______. Select...
Riboswitch is a mechanism of gene activity regulation by mRNA conformation. Riboswitch can regulate ______. Select one: a. transcription b. translation c. both transcription and translation d. neither transcription nor translation
the role of most microRNAs within a eukaryote cell is to a. regulate the splicing of...
the role of most microRNAs within a eukaryote cell is to
a. regulate the splicing of primary transcripts to mRNAS b. repress the expression of genes by destroying mRNAs c. bind with other RNAs to stabilize their secondary structure d. associate with ribosomal proteins to facilitate translation e. regulate RNA polymerase activity in the nucleus
Question 24: Which of the following statements is true about transcription? Group of answer choices a....
Question 24: Which of the following statements is true about transcription? Group of answer choices a. In both prokaryotic and eukaryotic cells, transcription requires a promoter b. In eukaryotic cells, orientation and positioning of the polymerase is determined by sigma c. All transcription initiates in the cytoplasm d. In prokaryotic cells, orientation and positioning of the polymerase is determined by TBP and TFII-like transcription factors Question 25: If the transcribed mRNA using this coding strand were to be translated, the...
In eukaryotic cells, there are specific transcription factors (activators) that regulate gene expression. Describe the organization...
In eukaryotic cells, there are specific transcription factors (activators) that regulate gene expression. Describe the organization of eukaryotic genes (i.e. promoters/enhancers) and how transcription factors are able to control gene expression and enzyme activity. a) Throughout the course we discussed the enzyme lactase and how it is differently regulated (and therefore expressed) in different human populations. Describe how this gene is differently expressed in different populations and when this/these change(s) are predicted to have taken place. b) Differential gene expression...
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates...
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates transcription. O C. It doesn't regulate transcription at all. D. Both A and B.
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level(after transcription/formation of the immature mRNA molecule), or both. 1. Addition of the signal-recognition particle (SRP) 2. DNA methylation 3. Enhancers or insulators
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level (after transcription/formation of the immature mRNA molecule), or both. 1. Alternative splicing 2. Chromatin remodeling 3. RNAi 12pt v Paragraph Β Ι Ο Α ev T²w ...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can not efficiently carry oxygen to body tissues. a- thalassemia occurs when the HBA1 gene is mutant such that no protein product is made or a non-functional protein is produced. Recently, microRNAs have been implicated in regulating expression of the HBA1 gene. Below is microarray data showing the amount of expression of different microRNAs where each row corresponds to the different miRNA indicated on the...
5. (2pts) a-thalassemia is a human genetic condition resulting in severe anemia because blood cells can not efficiently carry oxygen to body tissues. a-thalassemia occurs when the HBA1 gene is mutant such that no protein product is made or a non- functional protein is produced. Recently, microRNAs have been implicated in regulating expression of the HBA1 gene. Below is microarray data showing the amount of expression of different microRNAs where each row corresponds to the different miRNA indicated on the...
the role of most microRNAs within a eukaryote cell is to
a. regulate the splicing of primary transcripts to mRNAS b. repress the expression of genes by destroying mRNAs c. bind with other RNAs to stabilize their secondary structure d. associate with ribosomal proteins to facilitate translation e. regulate RNA polymerase activity in the nucleus
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates transcription. O C. It doesn't regulate transcription at all. D. Both A and B.
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