Which of the following is NOT a difference between DNA and RNA synthesis?
a. the nature of the nucleotide used
b. the direction of synthesis
c. the presence of discrete termination signals
d. the simultaneous coding from both strands of DNA.
During transcription, separation of the DNA strands is necessary. This involves:
a. During transcription, separation of the DNA strands is necessary. This involves:
b. separation of long segments of the DNA corresponding to genes.
c. separation in only a small segment of DNA at a time.
d. separation of the DNA strands one base pair at a time.
The prokaryotic RNA polymerase holoenzyme has an ?2 ? ?' ? subunit structure. Which of the following statements is TRUE regarding this enzyme?
a. The holoenzyme is required in all steps of transcription.
b. Although present throughout the transcription process, the ? subunit is required for recognition of promotor sites but not for elongation steps in RNA synthesis.
c. The ? subunit is only involved in initiation of transcription and dissociates from the enzyme after RNA synthesis begins.
d. The ?2 and ? subunits are involved in initiation of transcription and dissociate from the ? and ?? subunits after RNA synthesis begins.
Which of the following is NOT a difference between DNA and RNA synthesis? a. the nature...
RNA polymerase releases the DNA template. Initiation Elongation Termination A process called clearance or escape. The RNA polymerase holoenzyme binds to the promoter A process called clearance or escape. Reaching a terminator sequence causos formation of phosphodiester bonds to stop. The RNA polymerase holoenzyme is formed. Once bound to the promoter, RNA polymerase begins to unwind the DNA. New nucleotides are added to the 3' end of the growing RNA transcript. The RNA-DNA hybrid within the transcription bubble dissociates New...
What DNA/RNA/protein(s) is/are involved in the following processes in... DNA Replication Transcription - Prokaryotes Transcription - Eukaryotes What serves as the template? Unwinding of DNA Initiation Elongation What direction does elongation occur? Termination What is the end product of this process? How many strands? Processing after?
A) Explain lagging strand DNA replication in detail. Underline the following terms in your answer: replication fork, DNA polymerase III, primase, and ligation. Make sure that your answer is complete and that all the entities that come together in the process of lagging strand replication are clearly explained. Draw one figure of a replication fork with the polarity (directionality) of each DNA strand indicated. G) Explain RNA transcription in E. coli in detail, from initiation to termination. Underline the following...
Describe the structure and function of elements needed for transcription, including the promoter, RNA polymerase core enzyme and holoenzyme, sigma factor, and template and non-template (coding) strands of DNA. eukaryotes - . List major differences between transcription and RNA processing in bacteria and o What is coupled transcription/translation? o What is a polyribosome? Is it exclusive of bacterz - Discuss major components and events in RNA processing, in - Describe tRNA stru - Discuss mech cluding, introns and exons, splicing....
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments are known as Select one: O A. promoters. B. sigma. O C. initiation factors. O D. the holoenzyme.
pls fo all 20) A) an enzyme that synthesizes RNA as part of the transcription process B) an enzyme that uses RNA as a substrate C) an enzyme that catalyzes the association between the large and small ribosomal subunits D) an enzyme that synthesizes RNA primers during DNA replication E) an RNA with enzymatic activity 20) What is a ribozyme? 21) 21) Alternative RN A splicing A) increases the rate of transcription. B) can allow the production of similar proteins...
QUESTION 6 During which stage of eukaryotic transcription do the following processes take place? 1. RNA polymerase ll binds to the promoter 2. The RNA transcript released 3. The RNA transcript extended a. 1-termination; 2-initiation; 3-elongation b. 1-nitiation, 2-elongation; 3-termination c. 1-elongation; 2-termination; 3-initiation d. 1-initiation; 2-termination; 3-elongation e. 1-termination; 2-elongation; 3-initiation
15. Translation (RNA protein) has three main stages: initiation, elongation, and termination. a. Initiation occurs when the small ___________________ subunit binds to the ____ end of mRNA and is then joined by the large _________________ subunit (which has three sites called the A, P, and E sites). Once the complex is formed, the _______________ begins to read the mRNA in a ____ to ____ direction. When it reaches the first start codon (_________) a tRNA carrying the amino acid ______________________...
Question 19 (1 point) Which of the following steps is not associated with protein synthesis? a) Initiation b) Transcription c) Replication d) Translation Question 20 (1 point) A nucleic acid is a) DNA or RNA. b) a base pair. c) a nucleotide.
1. The clamp loader loads the sliding clamp onto the DNA. Review the steps listed below. Which step would come SECOND? a) ATP binds to the y (gamma) subunits, which undergo a conformation change. b) Double-stranded DNA passes through the ß clamp. c) They (gamma) — p clamp —ATP complex binds primed DNA. d) Y (gamma) subunits bind to and open the clamp. e) Single-stranded DNA passes through the side of the ß clamp loader gap. 2. Which of the...