Homework Answers
Ans.53. Option A is the correct answer.
EXPLANATIONS:- RNA polymerase are the enzyme that are used during the transcription process for the synthesis of the RNA on the DNA templates. It does not have the proofreading as much as DNA polymerase. It uses the ribonucleotides for the synthesis of RNA strand.
Ans.54. Option B is the correct answer.
EXPLANATIONS:- The tRNA are always read in the 5'---- 3' directions. The anticodon for leucrne will be 3'- AAC-5'.
Ans.55. Option E is the correct answer.
EXPLANATIONS:- In protein synthesis process, ribosomes are responsible for the translation of mRNA into polypeptides. The process of the translation occurs in the cytoplasm. Ribosome is very necessary for this process. That is why , ribosome is also called as the protein factory of the cell.
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53. RNA polymerases differ from DNA polymerases in that A. RNA polymerases are less effective at...
Compared to RNA elongation by RNA polymerases, DNA elongation by DNA polymerase requires an additional reaction...
Compared to RNA elongation by RNA polymerases, DNA elongation by DNA polymerase requires an additional reaction component. Which is appropriate for fulfillment of this requirement? Select one: a. a primase is needed for the biological DNA replication. b. a short DNA primer is necessary for PCR. c. a host tRNA is used for the synthesis of DNA by viral reverse transcriptase. d. All of these e. None of these
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would be best described as... a. 3′- TACCTACG -5′. b. 5′- ATGGATGC -3′. c. 5′- AUGGAUGC -3′. d. 5′- UACCUACG -5′. e. 3′- UACCUACG -5′. Question 2b Which answer best summarizes how eukaryotic and bacterial RNA polymerases are different? a. Eukaryotes have several types of multimeric RNA polymerases, whereas bacteria only have one monomeric RNA polymerase. b. Eukaryotes have several types of RNA polymerases, one...
1.) In which direction is RNA transcribed? 2.) Which of the two strands (A or...
1.) In which direction is RNA transcribed?
2.) Which of the two strands (A or B) serves as the TEMPLATE
strand for the transcription of a mRNA that contains both a start
and a stop codon?
3.) Which number (1, 2, 3, 4, or 5) best approximates the
location of the -10 consensus sequence?
4.) How many amino acids long is the protein encoded by the mRNA
from this DNA sequence?
5.) What is the second...
Choose the correct option DNA polymerases: (A) all have a 5′–3′5′–3′ exonuclease activity for proofreading. (B)...
Choose the correct option DNA polymerases: (A) all have a 5′–3′5′–3′ exonuclease activity for proofreading. (B) are only found at replication forks. (C) only polymerize in a 5′ to 3′5′ to 3′ direction. (D) are all highly processive.
QUESTION 34 The gene encoding an E. coli tRNA containing the anticodon 5'-GUA-3' mutates so that...
QUESTION 34 The gene encoding an E. coli tRNA containing the anticodon 5'-GUA-3' mutates so that the anticodon now is 5'-UUA-3'. What will be the effect of this mutation? a. The bacterial ribosomes would stop translation whenever a tyrosine codon in a mRNA is positioned in the A site. b. The bacterial ribosomes would stop translation whenever a leucine codon in a mRNA is positioned in the A site. c. The bacterial ribosomes would compete with the termination factor to...
Question 2 1 pts A sequence of DNA that contains information for the synthesis of RNA...
Question 2 1 pts A sequence of DNA that contains information for the synthesis of RNA molecules used in the manufacture of proteins is also known as a(n) intron. mutation. gene. codon. Flag this Question Question 3 1 pts A small segment of DNA on the template strand contains the base sequence CGT. If an mRNA transcript is made that includes this sequence, what would be the anticodon on the tRNA that would bind to this corresponding mRNA sequence? CGT...
Translate the following DNA sequence: DNA template: 3' G C T A C C G G...
Translate the following DNA sequence: DNA template: 3' G C T A C C G G A G T A A T A C T 5' What are the tRNA anticodons for the sequence? DNA template: 3' G C T A C C G G A G T A A T A C T 5' anticodon 1: 3' 5' anticodon 2: 3' 5' anticodon 3: . 3' 5' anticodon 4: 3' 5' anticodon 5: 3
The process of making RNA using DNA as a template is called ___. The process of...
The process of making RNA using DNA as a template is called ___. The process of using the codes in RNA to make protein is called ___. Complete the following table with information on the three types of RNA polymerases and role of specific type of RNA in protein synthesis: In prokaryotes, the two stages of protein synthesis are: ___ and ___. In eukaryotes, the three stages of protein synthesis are ___, ___ and ___. During transcription, a ___ ___...
21. The initiation of transcription of a gene occurs DNA when RNA polymerase binds to the...
21. The initiation of transcription of a gene occurs DNA when RNA polymerase binds to the of the gene b. start codon c. exon 1 d. intron 1 e. splice site 22. Phosphodiester linkages are present in a. DNA b. mRNA c. tRNA d a and b e. all of the above 23. The 5' cap and poly A tail are added to a. pre-mRNA in the cytoplasm b. help with pre-mRNA splicing. c. protect mRNA d. assist in posttranslation...
Student Sheet Name Title: Making Sentences of DNA structions coded in DNA in this activity yoids....
Student Sheet Name Title: Making Sentences of DNA structions coded in DNA in this activity yoids. The words Introduction: The instructions coded in DNA must be read and turned into pro molecules for the cell to carry out the instructions. In this activity you will model this process using sentences for DNA and RNA and words for amino acids. The words must line up in the correct order for the protein to form properly, just like words in a sentence...
1.) In which direction is RNA transcribed?
2.) Which of the two strands (A or B) serves as the TEMPLATE
strand for the transcription of a mRNA that contains both a start
and a stop codon?
3.) Which number (1, 2, 3, 4, or 5) best approximates the
location of the -10 consensus sequence?
4.) How many amino acids long is the protein encoded by the mRNA
from this DNA sequence?
5.) What is the second...
QUESTION 34 The gene encoding an E. coli tRNA containing the anticodon 5'-GUA-3' mutates so that the anticodon now is 5'-UUA-3'. What will be the effect of this mutation? a. The bacterial ribosomes would stop translation whenever a tyrosine codon in a mRNA is positioned in the A site. b. The bacterial ribosomes would stop translation whenever a leucine codon in a mRNA is positioned in the A site. c. The bacterial ribosomes would compete with the termination factor to...
The process of making RNA using DNA as a template is called ___. The process of using the codes in RNA to make protein is called ___. Complete the following table with information on the three types of RNA polymerases and role of specific type of RNA in protein synthesis: In prokaryotes, the two stages of protein synthesis are: ___ and ___. In eukaryotes, the three stages of protein synthesis are ___, ___ and ___. During transcription, a ___ ___...
21. The initiation of transcription of a gene occurs DNA when RNA polymerase binds to the of the gene b. start codon c. exon 1 d. intron 1 e. splice site 22. Phosphodiester linkages are present in a. DNA b. mRNA c. tRNA d a and b e. all of the above 23. The 5' cap and poly A tail are added to a. pre-mRNA in the cytoplasm b. help with pre-mRNA splicing. c. protect mRNA d. assist in posttranslation...
Student Sheet Name Title: Making Sentences of DNA structions coded in DNA in this activity yoids. The words Introduction: The instructions coded in DNA must be read and turned into pro molecules for the cell to carry out the instructions. In this activity you will model this process using sentences for DNA and RNA and words for amino acids. The words must line up in the correct order for the protein to form properly, just like words in a sentence...
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