Homework Answers
Ans. b presence of introns is not the characteristic of prokaryotic genome.
reason that prokaryotic cells don't normally have introns in their genetic code is actually because of the mechanism of translation.
In prokaryotic cells which don't have a nucleus, the translation and transcription machinery is often coupled. So, as soon as the transcription is initiated properly, the ribosomes will assemble on the nascent mRNA and translation will commence. There is no time for introns excision in this process.
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which of the following is not characteristic of prokaryotic genomes
Which one of the following is...
which one of the following is not characteristic of prokaryotic genomes? a may have have histone...
which one of the following is not characteristic of prokaryotic genomes? a may have have histone like proteins associated in chromatin b) presence of introns c) gene rearranged in operons d) presence of exons e) distinct replication site
Which of the following is true of transcription, but not replication? Select one: a. It requires...
Which of the following is true of transcription, but not replication? Select one: a. It requires polymerase to catalyze the process. b. All of these are true for both transcription and replication. c. It requires promoters to initiate the process. d. It requires a primer to initiate the process. Clear my choice Question 6 Not yet answered Marked out of 1.00 Flag question Question text Which of the following is/are true of promoters? Select one: a. they contain both exons...
allll pleas Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final...
allll pleas
Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final mRNA product. Which of the following modifications is something that occurs to eukaryotic RNA (which one is correct): OA) removing exons from the transcript B) adding introns into the transcript C) adding a poly(A) tail to the transcript by poly(A) polymerase OD) adding start codons to the transcript after its synthesis E) removing a 5' cap from the transcript Question 18 (1 point) Origins,...
The prokaryotic gene zests produces a hypothetical enzyme and is repulsted along with other genes that...
The prokaryotic gene zests produces a hypothetical enzyme and is repulsted along with other genes that produce other enzymes in the pathway. From the information given, we can conclude that zestS is a(n) gene O a repressible b. constitutive O regulatory Od. inducible O estructural The product of a metabolic pathway binds to a regulatory protein, which is then able to bind to the operator of another operon and promote transcription. This describes a. both repressible and inducible systems b....
Some simple eukaryotic genes can be transcribed and translated by prokaryotes like E. coli. However, some...
Some simple eukaryotic genes can be transcribed and translated by prokaryotes like E. coli. However, some eukaryotic genes cannot be expressed by prokaryotes. Which of the following might be a reason for this failure? A. Prokaryotes are not able to cut out the introns nor are they able to O splice the exons together from the eukaryotic gene. B. the prokaryotic genetic code is sometimes different from eukaryotic code. C. Eukaryotic genes often have unique nucleotide bases which are not...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that code for an amino acid. C. A sequence of nucleotides in DNA that codes for a functional product. d. A sequence of nucleotides in RNA that codes for a functional product. e. A transcribed unit of DNA. 12. Which of the following statements is false? a. DNA polymerase joins nucleotides in one direction only. b. The leading strand of DNA is made continuously c....
Which of the following statements about chromatin remodeling is incorrect? Select one: O a. Chromatin remodeling...
Which of the following statements about chromatin remodeling is incorrect? Select one: O a. Chromatin remodeling provides the transcription machinery with dynamic access to an otherwise tightly packaged genome. O b. Chromatin remodeling often involves histone modifications (e.g., methylation). O c. Eukaryotes use chromatin remodeling as a mechanism for epigenetic modifications. O d. Prokaryotes use chromatin remodeling to regulate operon activity. O e. Chromatin remodeling plays a central role in the regulation of gene expression.
answer all the questions 18) A mutation occurs such that a spliceosome cannot remove one of...
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic...
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic RNA usually undergoes nuclear processing C. Polypeptides are synthesized by addition of amino acids to the amino terminus. D. The 3' end of mRNA corresponds to the carboxyl terminus of the protein. Grade 2. Which of the following A. It may be autocatalytic. B. Spliceosomes are present in organelles and nuclei C. It involves removal of exons is true regarding RNA processing? D. It...
Which of the following statements is/are false/incorrect. Select all that apply. You may select multiple options....
Which of the following statements is/are false/incorrect. Select all that apply. You may select multiple options. CAMP levels are negatively correlated with glucose levels E. coli preferentially uses arabinose over glucose Laco (operator) can act in trans Lacl (repressor) can act in trans CAMP binding to CRP facilitates transcription of many operons O Alternative splicing can generate multiple transcripts from the same gene Introns are spliced out of bacterial mRNA before translation Enhancers work in only one orientation and when...
allll pleas
Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final mRNA product. Which of the following modifications is something that occurs to eukaryotic RNA (which one is correct): OA) removing exons from the transcript B) adding introns into the transcript C) adding a poly(A) tail to the transcript by poly(A) polymerase OD) adding start codons to the transcript after its synthesis E) removing a 5' cap from the transcript Question 18 (1 point) Origins,...
The prokaryotic gene zests produces a hypothetical enzyme and is repulsted along with other genes that produce other enzymes in the pathway. From the information given, we can conclude that zestS is a(n) gene O a repressible b. constitutive O regulatory Od. inducible O estructural The product of a metabolic pathway binds to a regulatory protein, which is then able to bind to the operator of another operon and promote transcription. This describes a. both repressible and inducible systems b....
Some simple eukaryotic genes can be transcribed and translated by prokaryotes like E. coli. However, some eukaryotic genes cannot be expressed by prokaryotes. Which of the following might be a reason for this failure? A. Prokaryotes are not able to cut out the introns nor are they able to O splice the exons together from the eukaryotic gene. B. the prokaryotic genetic code is sometimes different from eukaryotic code. C. Eukaryotic genes often have unique nucleotide bases which are not...
11. A gene is best defined as a. A segment of DNA b. Three nucleotides that code for an amino acid. C. A sequence of nucleotides in DNA that codes for a functional product. d. A sequence of nucleotides in RNA that codes for a functional product. e. A transcribed unit of DNA. 12. Which of the following statements is false? a. DNA polymerase joins nucleotides in one direction only. b. The leading strand of DNA is made continuously c....
Which of the following statements about chromatin remodeling is incorrect? Select one: O a. Chromatin remodeling provides the transcription machinery with dynamic access to an otherwise tightly packaged genome. O b. Chromatin remodeling often involves histone modifications (e.g., methylation). O c. Eukaryotes use chromatin remodeling as a mechanism for epigenetic modifications. O d. Prokaryotes use chromatin remodeling to regulate operon activity. O e. Chromatin remodeling plays a central role in the regulation of gene expression.
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic RNA usually undergoes nuclear processing C. Polypeptides are synthesized by addition of amino acids to the amino terminus. D. The 3' end of mRNA corresponds to the carboxyl terminus of the protein. Grade 2. Which of the following A. It may be autocatalytic. B. Spliceosomes are present in organelles and nuclei C. It involves removal of exons is true regarding RNA processing? D. It...
Which of the following statements is/are false/incorrect. Select all that apply. You may select multiple options. CAMP levels are negatively correlated with glucose levels E. coli preferentially uses arabinose over glucose Laco (operator) can act in trans Lacl (repressor) can act in trans CAMP binding to CRP facilitates transcription of many operons O Alternative splicing can generate multiple transcripts from the same gene Introns are spliced out of bacterial mRNA before translation Enhancers work in only one orientation and when...
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