a) miRNA splicing
Self spilicng also known as autocatalytic occurs in miRNA which leads to pre-mRNA which once again undergoes self splicing by sRNPs formed by snRNA along with other associated proteins.
QUESTION 13 Which type of splicing occurs by autocatalytic splicing? a) rRNA b) miRNA c) TRNA...
QUESTION 15 What type of splicing occurs by precise endonucleolytic cleavage and ligation? a) SRNA b) rRNA c) mRNA d) miRNA e) tRNA
Which of the following can be translated into protein? A. rRNA B. tRNA C. mRNA D. miRNA E. B and C
1. Which of the following RNAs can induce gene silencing? tRNA snRNA dsRNA rRNA miRNA 2. Which vehicles are often used for gene therapy to carry a healthy gene? Bacteria Viruses Plastic capsules Both A and B Both A and C 3. A common method in biochemistry to detect and analyze proteins is: Northern blot Southern blot Western blot Eastern blot All of the above 4. The technique used to identify a specific DNA sequence in bacterial colonies is In...
There are 5 types of RNAs. Which type is used to regulate gene expression by binding to complementary mRNAs to block gene expression or cause their degradation? rRNA mRNA miRNA tRNA
Which statement about mRNA splicing is not accurate? Splicing is carried out by tRNA and associated proteins The C-terminal tail domain of RNA polymerade coordinates the processing (including splicing) of mRNA. The 2’ –OH in ribose is used during the splicing reaction. Alternative splicing can produce different proteins from the same genetic sequence in DNA Which describes the cellular role of chaperone proteins? Guide nascent proteins to their final destination in the cytoplasm Help nascent proteins fold into proper tertiary...
Translation uses ___ and ____ to synthesize ________ a) mRNA, DNA, amino acids b) mRNA, rRNA, polypeptide chains c) mRNA, tRNA, polypeptide chains d) rRNA, tRNA, amino acids Teacher says a is wrong
QUESTION 1 Which of the following statements regarding splicing is FALSE? A) The length of introns determines the efficiency of splicing. B) Many human neurological disorders are caused by splicing errors and/or mutations in splicing factors. C) Splicing requires the action of a variety of snRNAs that direct the transesterification reactions. D) Splicing is dictated by sequence features in pre-mRNA transcripts QUESTION 2 Which of the following mRNA processing factors does NOT associate with...
А Help Center? Question 27 Which of the following statement is correct regarding posttranscriptional activity? Pre-mRNA is capped before undergoing splicing. tRNA is transcribed as one short transcript and is modifed by RNA pol II. Pre-mRNA is spliced before capping, rRNA is cleaved from tRNA transcript.
11. What are does "RNP" stand for and what are two functions of these molecules" 12. Deadenylation can lead to _of unneeded/unused mRNA. Select one: "amplification", "degradation", "splicing" 13. What are two modifications that occur in "pre-tRNA" to become "mature tRNA" 14. microRNAs play a key role in which of the following? a. translational repression b. viral RNA degradation Explain: c. RNA interference d. all of the above Explain: 15. Synthesis of pre-rRNA occurs in the a. nucleolus. b. endoplasmic...
1. A loss of 3′ polyadenylation will lead to: a. intensified splicing of mRNA. b. intensified capping. c. decreased stability of the mRNA. d. intensified splicing of tRNA. e. alternative splicing. 2. What is the function of helicase? a. It eliminates supercoils by cleaving DNA. b. It utilizes the energy of ATP to add negative supercoils to DNA. c. It removes mismatched nucleotides from the 3′ end of DNA. d. It utilizes the energy of ATP for separation of strands....