Please do all. 1. Which of the following catalyzes formation of peptide bonds between aminoacids during translation in Eukaryotes?16S FRNA18S FRNA235 FRNA28S FRNA2.Most proteins interact with DNA through major groove exceptRNA Polymerase IIPeptidyl TransferaseTranscription Factor II DRNA polymerase II3. The expression of housekeeping genes in cells needs to be induced by anexternal stimulus options:TrueFalse

1. Peptidyl transferase is a protein synthesis enzyme that catalyses the addition of an amino acid…

Answered: 1. Which of the following catalyzes…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 8TYK

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1. Which of the following repair mechanisms can lead to frameshift mutations? a. Nonhomologous end-joining b. Nucleotide excision repair c. Mismatch repair d. Homologous recombination 2. In eukaryotes, what must be formed before translation is initiated? a. The binding of 30s ribosomes with IF1, IF3, mRNA, and fmet-tRNAf b. The binding of 40s ribosomes with eIF1, eIF3, mRNA, and fmet-tRNAf c. The binding of 50s ribosomes with IF1, IF3, mRNA, and fmet-tRNAf d. The circularization of mRNA and subsequent binding with the complex made up of 40s ribosomes with eIF1, eIF3, and met-tRNAi. 3. Which of the following eukaryotic transcription initiation factors is correctly paired with their function? a. TFIID recruits RNAPII to the promoter b. TFIIA binds to the TATA box. c. TFIIF kicks out the inhibitory protein in TFIID. d. TFIIH melts the DNA to open the transcription bubble.
4. Some transposases use extensive DNA replication to leave one copy of the element behind in a process called ____________________.A. persistent transpositionB. chronic transpositionC. exchange transpositionD. replicative transpositionE. none of the above 5. Which of the following is not an example of a transposable element found in bacteria?A. Tn5B. Tn10C. IS1D. IS903E. Xis 6. Besides a transposase, many common composite transposons in bacteria encode genes for:A. Toxin productionB. Antibiotic resistanceC. DNA repairD. Homologous recombinationE. None of the above
1. This complex assembles and organizes nucleosomes and contributes to gene repression Group of answer choices a. SWR1 Complex b. ISWI Complex c. SWI/SNF Complex d. SWI Complex 2. A DNA lesion occurring when the deoxyribose molecule loses an adenine or a guanine base. Group of answer choices a. Depurination b. Deamination c. Depyrimination d. Denaturation 3. The difference between a nucleoside and nucleotide is: Group of answer choices a. Nucleotides contains deoxyribose sugar and nucleosides contain ribose sugar b. A nucleoside consists of the sugar with a nitrogenous base, whereas a nucleotide has sugar with a nitrogenous base and phosphate groups attached to the sugar. c. A nucleotide consists of the sugar with a nitrogenous base, whereas a nucleoside has sugar with a nitrogenous base and phosphate groups attached to the sugar. d. Nucleotides are involved in eukaryotic DNA replication, while nucleosides are used in bacterial DNA replication
1)Which of the following would represent mRNA for the above minigene? a.) AUG CGC GUU CCC GUG UAA b.) UUA CAC GGG AAC GCG CAU c.) AAU GAG CCC AAG CGC GAU 2) Of the following types of RNAi, which one is the most stable? piRNA, miRNA, siRNA, circRNA 3) Identify sense from antisense in this fake minigene. 5’TTA CAC GGG AAC GCG CAT3’ 3’AAT GTG CCC TTG CGC GTA5'
1. In DNA amplification, using the Taq polymerase, what is the maximum number of amplification cycles? a. 30 b. 20 c. 60 d. 10 2. In the case of trp operon, for transcription to fully occur, which of the following conditions must be met? a. Environmental tryptophan level must be low. b. Environmental tryptophan must be absent. c. Environmental tryptophan level must be abundant. d. Both a and b are correct.
The following diagram represents a transcription unit in a hypothetical DNA molecule. 5′ … TTGACA … TATAAT … 3′ 3′ … AACTGT … ATATTA … 5′ a. On the basis of the information given, is this DNA from a bacterium or from a eukaryotic organism? b. If this DNA molecule is transcribed, which strand will be the template strand and which will be the nontemplate strand? c. Where, approximately, will the transcription start site be?
1.A portion of an mRNA attached to a ribosome reads: 5′ GACAUGAACAGC 3′ If a tRNA with a methionine amino acid attached is in the P site of the ribosome, a tRNA with which amino acid attached will enter the A site? Group of answer choices a. Glutamic Acid b. Lysine c. Threonine d. Asparagine 2. Active transcription does not occur in regions of chromatin loops that are located ________. Group of answer choices a. A large distance away from the MARS b. Within the euchromatin c. Near the MARS d. A large distance from the telomere 3. Given the DNA sequence 5′-AUG GCU AGA GUU GAA AAA-3′, which of these sequences represents a silent mutation? Group of answer choices a. 5′-AUG GUU AGA GUU GAA AAA-3′ b. 5′-AUG GCU UGA GUU GAA AAA-3′ c. 5′-AUG GCU AGA GUU GGA AAA-3′ d. 5′-AUG GCU CGA GUU GAA AAA-3′
1. Classify the type of mutation that have taken place: silent, missense and nonsense as a result of a single base substitution from UCG codon which codes for cysteine:a) AGC (ser): ________b) UGU (cys): ________c) GGC (gly): _______d) UGA (stop): _______e) UUC (phen): _______2. A single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacterial virus T4 caused a change in the protein fromits wil-type composition….lys-ser-pro-ser-leu-asn-ala-ala-lys…..to the mutant form lys-val-his-his-leu-met-ala-alalys.a. Decipher the segment of mRNA for both the original protein and the double mutant.b. Which base was added? Which was deleted?3. Given is the 30 nucleotides in the human gene for hemoglobin (the oxygen-carrying protein in the red blood cells): 5’ TAC-CAC-GTG-GAC-TGA-GGA-CTC-CTC-TTC-AGA 3’a. What is the complementary strand?b. Deduce the mRNA in this coding region.c. What is the amino acid sequence based on this…
RNA polymerases generally require a primer to begin transcription. (T) (F) The Death Cap Mushroom Amanita phalloides is toxic because of its ability to produce alpha-amanitin, which is an inhibitor of RNA Polymerases I and III. (T) (F) In bacteria, transcription and translation can occur simultaneously. (T) (F) In eukaryotes, transcription and translation can occur simultaneously (T) (F) RNA polymerase II has no form of proofreading activity. (T) (F) Sigma factors specify binding of bacterial RNA Polymerases to specific promoters (T) (F) An E. coli strain with mutations in genes encoding both the dam methylase and the RecA protein would likely be inviable (dead) (T) (F) An E. coli culture grown in a pure (100%) N2 atmosphere would likely have a lower rate of mutations than a culture grown under normal conditions (~30% O2 and 70% N2) (T) (F) Non-homologous end joining repairs double strand DNA breaks with no loss of information, restoring the original…
1. (a) Which of the following statements is TRUE? DNA polymerase moves in a 5 to 3 direction in proofreading and correcting synthesized DNA. RNA polymerase moves in a 5 to 3 direction in synthesizing mRNA. Ribosome moves in a 3 to 5 direction during translation. tRNA moves in a 3 to 5 direction during translation. (b) "In this mutation, most amino acids are replaced due to a deletion of a nucleotide base." missense mutation nonsense mutation silent mutation frameshift mutation
Choose 1 or more than 1 RNA are extracted from liver cells and separated in agarose gel by electrophoresis side-by-side with a molecular weight marker. The separated RNA fragments are then transferred to an RNA-binding membrane. Next, this membrane is incubated with labelled probe specific for the gene X. This experiment determines: how many copies of gene X there are in liver cells. if the gene X is translated in liver cells. if gene X has a point mutation in liver cells. the chromosomal location of gene X. the length of the transcript of gene X.
1) Which of the following complexes contributes to the transcription of cyclin E? a) Cdk1/cyclin A b) Cdk2/cyclin B c) Cdk3/cyclin C d) Cdk4/cyclin D 2. DNA Polymerase δ (delta) has the following functions EXCEPT a) proof-read the new DNA strand. b) detach the dangling RNA primer. c) nip the RNA primer during termination. d) add DNA nucleotides to the lagging strand.

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