Answer=
25] The following is not true concerning eukaryotic mRNA processing is
E] Occurs in cytoplasm.
explaination- A] addition of a 3' poly A tail
B] Addition of a 5'cap
c]intron splicing
d]occure in nucleus
all are the eukaryotic mRNA processing mechanisms.that takes place inside the nucleus.
because eukaryotic transcription takes place inside the nucleus,after formation of mRNA ,mRNA splicing takes place inside the nucleus.
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26] The following is involved in maintaining lysogeny in phage.
E]All of the choices are correct
explaination- pRE ,pRM ,PRL ,PRO all are involved in maintaining lysogeny in phage.
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27]The graphic represnt the process of
B] Lysogeny
explaination- because in this representation there is integration of bacteriophage nucleic acid into the hosts bacteriums genome & formation of circular replicon in the bacterial cytoplasm.
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27]solid box must represent
c]Replicon
25. Which of the following is not true concerning eukaryotic mRNA processing (A) addition of a...
1. Which of the following statements concerning transcription of bacterial mRNA is not true? Bacterial mRNA must have intron material removed before it can be used in the process of protein translation.* Energy necessary for transcription is provided by the breaking of phosphate bonds carried by ribonucleotide triphosphates (rNTPs). A sigma factor recognizes the promoter site sequences on the DNA strand during transcription. A guanine-rich sequence on the template DNA molecule causes the growing RNA strand to loop and detach.
36) Which of the following has been linked to cervical cancer? a) Human papilloma virus b) Epstein-Barr virus c) Influenza Virus d) Human immunodeficiency virus e) Human herpes virus 37) This virus has 8 nucleocapsids a) Rhabdoviridiae b) Orthomyxoviridiae c) Herpesviridiae d) Retroviridae e) Ebola 38) Which of these enzymes is necessary for the replication of a (+) strand RNA virus? a) RNA dependent RNA polymerase b) RNA-dependent DNA polymerase c) Reverse Transcriptase d) DNA dependent DNA polymerase e) DNA-dependent...
Which among A-D is false regarding most DNA virus infections and most non-retroviral RNA virus infections? A. Once inside the host cell, RNA virus replication usually (though not always) occurs completely in the cytoplasm. B. The genome of DNA viruses generally must enter the nucleus of the host cell they infect. C. A (+) sense RNA strand produced by an RNA virus could serve as an mRNA and be directly translated into protein. D. DNA viruses typically are assembled in...
29. Which of the following statements is true? A. Endospores are for reproduction B. Endospores are readily stained in a Gram stain C. A cell can produce many endospores D. Endospores allow a cell to survive environmental change 30. In the figure below, the enzyme in step 1 is A. DNA polymerase B. reverse transcriptase C. RNA polymerase D. DNA ligase Nuclous DNA of cukaryotio 0 mRNA DNA strand being synthesized cDNA of gene without introns Cytoplasm 31. In the...
Which of the following is true regarding retroviral retrotransposons? A. They encode both reverse transcriptase and an RNA polymerase B. They have directly repeated long terminal repeats at their two ends when integrated into chromosomal DNA C. Their genomic RNA can be translated to produce viral coat proteins D. They leave double-strand breaks in the original donor DNA E. The Alu element in our genome is an example of a retroviral-like retrotransposons
Warm Up Questions (6 pts.) a.) Transcription occurs along a ____ template forming an mRNA in the ____ direction. (0.5 pts.) A) 5' to 3'; 5' to 3' B) 5' to 3'; 3' to 5' C) 3' to 5'; 5' to 3' D) 3' to 5'; 3' to 5' b. A DNA molecule has 180 base pairs and is 30% adenine. How many cytosine nucleotides are present in this molecule of DNA? (1 pt.) c. Label all of the enzymes...
Compared to bacterial mRNA, eukaryotic mRNA needs an additional maturation processing by which ____ is removed such that the resulting mRNA contains only exons. This process is called RNA ___. Select one: a. capping ;;; reverse transcription b. intron ;;; reverse transcription c. transposon ;;; splicing d. intron ;;; splicing e. transposon ;;; recombination
1. A codon is present in ____. An anticodon is found in ___. The 5'- AUC-3' codon, will base pair with the 5'- _____3' anticodon a)mRNA,tRNA,UAG b)mRNA,tRNA,GAT c)DNA,mRNA,GAU d) mRNA, tRNA, GAU e) DNA,mRNA,CUA 31. The existence of Okazaki fragments supports the ___ model of DNA replication a) semi-conservative b)bidirectional c) conservative d) continious e)semi-discontiniouus 32. The human immunodeficiency virus (HIV) a retrovirus injects its genomic material composed of ___ into the host t cell; this must be ___ into___...
ach) 1. Which of the following statements correctly describes one replication? characteristic of the lytic cycle of viral Many bacterial cells containing viral DNA are produced 8) Viral DNA is incorporated into the host genome C) Th e viral genome replicates without destroying the host The bacterial host provides the nucleotides, enzymes, ribosomes and other co requires to make viral components D) 2. What is the function of the viral glycoproteins that are present in an enveloped virus? A) They...
Directions: Read through each question thoroughly. through your assignment tab. Highlight the correct answer. Submit the quiz 1. Which enzymes are responsible for adding nucleotides to the DNA molecule during DNA replication? a) DNA replicase b) DNA polymerase c) DNA catalase d) DNA gyrase 2. A bacterial cell with faulty RNA polymerase would not be able to carry out a) DNA replication b) double helix formation c) DNA supercoiling d) transcription 3. R plasmids are of particular concern to humans...