Some DNA polymerases have proofreading activities. After a nucleotide is added to a growing nucleic acid...
Some DNA polymerases have proofreading activities. After a nucleotide is added to a growing nucleic acid chain, it can be removed if it incorrectly pairs with the template. Speculate if ribosomes have similar proofreading activities during translation and give your reason.
Homework Answers
The elongation factor EF-Tu in prokaryotes and eEF1 alpha in eukaryotes have GTPase activity which in turn is responsible for fidelity of the protein synthesis. The ET-TU-GTP and Ef-Tu-GDP have a short life span. The short time period between dissociation of these complexes allows proofreading of codon-anticodon. If an incorrect aminoacyl tRNA is bonded to a codon, it is dissociated from the ribosomal A site. The presence of incorrect aminoacyl tRNA slows down the hydrolysis of Et-Tu-GTP to facilitate the proofreading.
The proofreading of presence of aminoacyl tRNA is required as formation of incorrect protein may be fatal for the cells.
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Some DNA polymerases have proofreading activities. After a
nucleotide is added to a growing nucleic acid...
What are the three functional groups that comprise a nucleotide? What do nucleotides have in common...
What are the three functional groups that comprise a nucleotide? What do nucleotides have in common with amino acids or simple sugars? When the structure of DNA was first elucidated, many biologists quickly saw how this structure explained the passage of information from one generation to another. How does the structure of DNA explain generation-to-generation flow of information? In other words, give a brief description of the structure of DNA and tell how this structure allows for replication. Which of...
1. A is a unit of nucleic Select the appropriate term from the table below to...
1. A is a unit of nucleic
Select the appropriate term from the table below to complete eacALUlllllell. tRNA rRNA replication transcription translation DNA. deletion translocation frame shift nucleus a l. A Duckohde unit of nucleic acid containing a sugar attached to is a phosphate group and a base. 2. The site of transcription is the the ribosome moves along the mRNA. 3. In the process of 4. A class of RNA molecules which is linked directly with protein synthesis,...
moose the correct alphabet (letter, noting that each and may have only ch answer can be...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
Chapter 15: 1. What is the significance of the fact that many synonymous codons differ in...
Chapter 15: 1. What is the significance of the fact that many synonymous codons differ in the third nucleotide position? 2. Define the following terms as they apply to the genetic code: a. Reading frame b. Overlapping code C. Nonoverlapping code d. Initiation codon e. Termination codon f. Sense codon 8. Nonsense codon h. Universal code i. Nonuniversal code 3. What role do the initiation factors play in protein synthesis? 4. Compare and contrast the process of protein synthesis in...
hello, two of these circled answers are incorrect. 1 6. The promoter sequences are the positions...
hello, two of these circled answers are incorrect.
1 6. The promoter sequences are the positions that: signal the initiation site of a gene (+1) B) bind the transcriptional factor that is associated with RNA polymerase e) attach the correct nucleotide triphosphate to the template DNA strand D) separate the two DNA strands CUA 7. A particular triplet of bases in the coding sequence of DNA is GAT. The anticodon on the tRNA that binds the mRNA codon is A...
PLEASE COMPUTER TYPED* OR VERY CLEAR HANDWRITING with details 1. Radioactive (14C) uridine (lots of it)...
PLEASE COMPUTER TYPED* OR VERY CLEAR HANDWRITING with
details
1. Radioactive (14C) uridine (lots of it) is added to a growing culture of bacteria for 10 seconds and then the drug rifamycin is added (rifamycin blocks the initiation of transcription, but not continued elongation of RNA polymerases that have already begun transcribing). At two-minute intervals, 1 ml samples are removed and placed on ice. The bacteria are lysed (broken open) and an enzyme is added that will chew up all...
C++ Help Task B: Translation While a nucleotide is the basic unit of information, three nucleotid...
C++ Help
Task B: Translation
While
a nucleotide is the basic unit of information, three nucleotides,
or codon, is the basic unit of storage. The reason
for this is that each gene codes for a protein, and all proteins
are made from 20 amino acids. Recall that there are 4 different
bases that make up dna. Thus, three bases can encode for 4x4x4 = 64
different symbols. Two base pairs can only encode for 4x4 = 16
symbols, which is...
Please note that Questions 15 to 17 are connected questions. Question 15: The following shows a...
Please note that Questions 15 to 17 are connected
questions.
Question 15:
The following shows a partial DNA sequence from the wild-type
(normal) allele for the human leukemia-linked apoptotic
gene.
5' ATGCGATTAATCGGTAAA 3' (non-template strand)
3' TACGCTAATTAGCCATTT 5' (template strand)
Please answer the following questions:
(a) If the bottom strand serves as the DNA template for
transcription, what is the resulting mRNA sequence?
The mRNA sequence is 5' 3'. (2
marks)
5' AUG CGA UUA AUC GGU AAA 3' ?
Please enter...
answer all pls 5 Figure K 3 19. Which of the bonds in Figure K above...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
Carolina Savirana Craz 3/12/20 GECC-Polymerase Chain Reaction 1. What is the purpose of the polymerase chain...
Carolina Savirana Craz 3/12/20 GECC-Polymerase Chain Reaction 1. What is the purpose of the polymerase chain reaction? a. To repair damaged DNA b. To make copies of entire chromosomes c. To make copies of specific regions of DNA d. To prepare cells for cell division 2. The polymerase chain reaction is most comparable to what cellular process? a. Mitosis b. Replication c. Transcription d. Translation 3. When enzymes are elongating (building) a newly synthesized DNA strand in PCR, new nucleotides...
1. A is a unit of nucleic
Select the appropriate term from the table below to complete eacALUlllllell. tRNA rRNA replication transcription translation DNA. deletion translocation frame shift nucleus a l. A Duckohde unit of nucleic acid containing a sugar attached to is a phosphate group and a base. 2. The site of transcription is the the ribosome moves along the mRNA. 3. In the process of 4. A class of RNA molecules which is linked directly with protein synthesis,...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
Chapter 15: 1. What is the significance of the fact that many synonymous codons differ in the third nucleotide position? 2. Define the following terms as they apply to the genetic code: a. Reading frame b. Overlapping code C. Nonoverlapping code d. Initiation codon e. Termination codon f. Sense codon 8. Nonsense codon h. Universal code i. Nonuniversal code 3. What role do the initiation factors play in protein synthesis? 4. Compare and contrast the process of protein synthesis in...
hello, two of these circled answers are incorrect.
1 6. The promoter sequences are the positions that: signal the initiation site of a gene (+1) B) bind the transcriptional factor that is associated with RNA polymerase e) attach the correct nucleotide triphosphate to the template DNA strand D) separate the two DNA strands CUA 7. A particular triplet of bases in the coding sequence of DNA is GAT. The anticodon on the tRNA that binds the mRNA codon is A...
PLEASE COMPUTER TYPED* OR VERY CLEAR HANDWRITING with
details
1. Radioactive (14C) uridine (lots of it) is added to a growing culture of bacteria for 10 seconds and then the drug rifamycin is added (rifamycin blocks the initiation of transcription, but not continued elongation of RNA polymerases that have already begun transcribing). At two-minute intervals, 1 ml samples are removed and placed on ice. The bacteria are lysed (broken open) and an enzyme is added that will chew up all...
C++ Help
Task B: Translation
While
a nucleotide is the basic unit of information, three nucleotides,
or codon, is the basic unit of storage. The reason
for this is that each gene codes for a protein, and all proteins
are made from 20 amino acids. Recall that there are 4 different
bases that make up dna. Thus, three bases can encode for 4x4x4 = 64
different symbols. Two base pairs can only encode for 4x4 = 16
symbols, which is...
Please note that Questions 15 to 17 are connected
questions.
Question 15:
The following shows a partial DNA sequence from the wild-type
(normal) allele for the human leukemia-linked apoptotic
gene.
5' ATGCGATTAATCGGTAAA 3' (non-template strand)
3' TACGCTAATTAGCCATTT 5' (template strand)
Please answer the following questions:
(a) If the bottom strand serves as the DNA template for
transcription, what is the resulting mRNA sequence?
The mRNA sequence is 5' 3'. (2
marks)
5' AUG CGA UUA AUC GGU AAA 3' ?
Please enter...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
Carolina Savirana Craz 3/12/20 GECC-Polymerase Chain Reaction 1. What is the purpose of the polymerase chain reaction? a. To repair damaged DNA b. To make copies of entire chromosomes c. To make copies of specific regions of DNA d. To prepare cells for cell division 2. The polymerase chain reaction is most comparable to what cellular process? a. Mitosis b. Replication c. Transcription d. Translation 3. When enzymes are elongating (building) a newly synthesized DNA strand in PCR, new nucleotides...
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