If a eukaryotic cell has synthesized a large quantity of a certain protein, you would know that all of the following had occurred prior to protein formation, except:
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A. |
Repressor proteins were likely bound to all of the enhancer sequences and proximal elements of the gene for this protein. |
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B. |
A transcription initiation complex was formed at the promoter region of the gene for this protein. |
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C. |
Chromatin remodeling occurred in the region of the chromosome containing this gene for this protein. |
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D. |
Introns were excised from the transcript of the gene for this protein. |
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E. |
Ribosomes aided in translation of the mature mRNA's of the gene for this protein. |
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F. |
all the above events would have occurred |
ANSWER: E
Because the events in first four options A,B,C,D take place prior to protein formation . Where as the event in option E take place during translation i,e during protein synthesis.
If a eukaryotic cell has synthesized a large quantity of a certain protein, you would know...
3. Prokaryotic and eukaryotic gene expression compared. Below is an incomplete table of prokaryotic and eukaryotic gene expression in comparison. Fill in the blank using PPT slides, notes and the textbook. Prokaryotic gene expression Eukaryotic gene expression Overview Steps Transcription and translation Yes Transcription and translation coupled? Gene structure No introns Epigenetic modification (chromosome remodeling) transcription, translation, RNA processing, protein processing Transcription in the nucleus and translation in the cytoplasm Interrupted gene with exons and introns RNAPI, II, III Which...
18. Which of the following statements correctly describe the role of transcription in the initiation of transcription in eukaryotes? A. Some transcription factors must bind to the promoter before RNA polymerası bind. B. Some transcription factors must bind to the promotor proximal element to en significant levels of mRNA production C. Some transcription factors can bind to enhancer elements thousands of base away from the gene D. Some transcription factors can bind to silencer elements that might be locate thousands...
onaformation from a ee is used in the synthesisof 17 functional gene product. A) Geno B) Gene regulation C) Epigenetics D) Imprinting E) Chromatin remodeling 18. A histone code is the: A) B) nucleotide sequence of an individual histone protein's gene. pattern of chemical modification of the DNA wrapped around an individual histone. C) D) E) pattern of chemical modification of the histone tails. number of amino acids in an individual histone that are methylated None of the other answer...
For the next group of questions consider a diploid cell from a eukaryotic organism with a total of ten chromosomes. After one round of the cell cycle is complete you observe a total of four daughter cells. During this cell division occurred and the resulting daughter cells are. mitosis; haploid with ten total chromosomes each mitosis; diploid with five total chromosomes each meiosis; diploid with ten total chromosomes each meiosis; haploid with five total chromosomes each Before the cell divided,...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
The diagram below shows two stretches of DNA in the genome of an
imaginary eukaryotic cell. The top stretch of DNA includes the
fantasin gene, along with its promoter and one of its enhancers.
The bottom stretch of DNA includes the imaginin gene, its promoter,
and one of its enhancers. The slash marks (//) indicate that more
than 1,000 nucleotides separate the promoter and enhancer of each
gene
Which statements about the regulation of transcription
initiation in these genes are...
Know who James Watson, Francis Crick and Rosolind Franklin were and what discoveries they contributed to. Know the monomer used for the construction of nucleic acids. Know about purines and pyrimidines Know about Chargaff’s rule Understand how complementary base pairing works Know the processes of Transcription, Translation and Replication Know about prokaryotes operons Know how eukaryotic cells regulated protein production Know what a mutation is and the types of point mutations described Know the three outcomes of mutation Know the...
Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic DNA is linear and bacterial and archaeal DNA is-linear. In prokaryotes, ribosomes attach to the mRNA and start protein synthesis even before transcription is completed. Eukaryotic mRNA, rRNA, and tRNA are all highway processed. Nuclear pore complexes control the entry and exit to and from the nucleus. They will not let mRNA exit the nucleus before it is full processed. Eukaryotic and archaeal DNA...
Where would you find histones? A. Part of the RNA polymerase complex that transcribes DNA. B. In a virus, helping to "inject" foreign DNA into a cell. C. Bound to an enhancer to regulate transcription. D. Asscoiated with DNA to make chromatin. What is the role of DNA ligase during DNA replication? A. It unwinds the parental double helix. B. It synthesizes RNA nucleotides to make a primer. C. It joins lagging strand (Okazaki) fragments together. D. It stabilizes the...
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...