Homework Answers
The role of most microRNAs in Eukaryotic cell is to :
Repress the expression of genes by destroying mRNA
Add Answer to:
the role of most microRNAs within a eukaryote cell is to
a. regulate the splicing of...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all genes in the soil nematode C. elegans. In trans-splicing, the exons from two different primary RNA transcripts produced in different portions of the genome are joined end-to-end and ligated. Do you consider these trans-spliced sequences of real genes or are they instead the product of a fusion of two genes? Question 5) Recently researchers discovered a new class of mRNA regulators named miRNAs. miRNAs...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all genes in the soil nematode C. elegans. In trans-splicing, the exons from two different primary RNA transcripts produced in different portions of the genome are joined end-to-end and ligated. Do you consider these trans-spliced sequences of real genes or are they instead the product of a fusion of two genes? Question 5) Recently researchers discovered a new class of mRNA regulators named miRNAs. miRNAs...
3) Antibodies can be membrane-bound or secreted, depending on whether a stretch of additional amino acids...
3) Antibodies can be membrane-bound or secreted, depending on whether a stretch of additional amino acids are present or not. What process do you think determines if these amino acids are present? postranslational covalent attachment of a membrane spanning domain to the antibody alternative RNA splicing phosphorylation polyadenylation ubiquitin addition 10) How does the Cas9 system target where it produces a double-strand break in the DNA? The Cas9 protein binds to a recombinase, allowing it to disable the gene of...
Question 1 Match the term with the best definition or description; most topics relate to the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A....
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
1.What sequence upstream of AUG in prokaryotic mRNA facilitates recruitment of the 30S ribosomal subunit by...
1.What sequence upstream of AUG in prokaryotic mRNA facilitates recruitment of the 30S ribosomal subunit by base pairing with 16S ribosomal RNA? A. The Pribnow box B. The Shine Dalgarno sequence C. The TATA box D. The -35 region E. A stop codon 2.What is the role of the Shine-Delgarno sequence in prokaryotic mRNAs? It specifies the site of translation initiation - ? It specifies the site of polyA addition RNA splicing RNA export It specifies the site of translation...
Yet, all the cells in your body contain the same genes (and same alleles). The difference...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
QUESTION 1 MC. Which of the following disease conditions might NOT be treatable by RNAI? a....
QUESTION 1 MC. Which of the following disease conditions might NOT be treatable by RNAI? a. arthritis b. Cancer caused by tumor suppressor gene mutation c. macular degeneration d. cancer caused by oncogen mutation S 5 QUESTION 2 MC. What is the molecular cause of male courtship behavior in fruit flies? a. Alternative splicing of the fruitless transcript b. RNA editing of the fruitless transcript C. Alternative sequence of the fruitless DNA d. Alternative 3' cleavage and polyadenylation of fruitless...
Please answer all questions. Oftentimes, unsaturated fatty acids are found in a fluid state at room...
Please answer all questions. Oftentimes, unsaturated fatty acids are found in a fluid state at room temperature (e.g., olive oil). This is because unsaturated fatty acids contain a large number of ___________________. a. Hydrogen bonds b. Carbon-Carbon single bonds c. Carbon-Carbon double bonds d. Sulfide bonds e. Radioactive bonds Which of the following stages of aerobic cellular respiration generates the most ATP? a. Glycolysis b. Pyruvate breakdown c. Citric Acid Cycle (aka. Krebs Cycle) d. Oxidative phosphorylation e. Calvin Cycle...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all genes in the soil nematode C. elegans. In trans-splicing, the exons from two different primary RNA transcripts produced in different portions of the genome are joined end-to-end and ligated. Do you consider these trans-spliced sequences of real genes or are they instead the product of a fusion of two genes? Question 5) Recently researchers discovered a new class of mRNA regulators named miRNAs. miRNAs...
Question 4) Trans-splicing is a special form of RNA splicing that occurs in 70-80% of all genes in the soil nematode C. elegans. In trans-splicing, the exons from two different primary RNA transcripts produced in different portions of the genome are joined end-to-end and ligated. Do you consider these trans-spliced sequences of real genes or are they instead the product of a fusion of two genes? Question 5) Recently researchers discovered a new class of mRNA regulators named miRNAs. miRNAs...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
QUESTION 1 MC. Which of the following disease conditions might NOT be treatable by RNAI? a. arthritis b. Cancer caused by tumor suppressor gene mutation c. macular degeneration d. cancer caused by oncogen mutation S 5 QUESTION 2 MC. What is the molecular cause of male courtship behavior in fruit flies? a. Alternative splicing of the fruitless transcript b. RNA editing of the fruitless transcript C. Alternative sequence of the fruitless DNA d. Alternative 3' cleavage and polyadenylation of fruitless...
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