Mitochondria are descended from bacteria that invaded cells 15 billion years ago and never left The mitochondrial genome is like that of bacteria circular doublestranded DNA, only smaller And just like the genome of bacteria, RNA can be made from both strands of mitochondrial DNA – which results in the formation of dsRNARNAi occurs naturally, through the production of nuclearencoded premicroRNA (premiRNA), and can be induced experimentally, using short segments of synthetic doublestranded RNA (dsRNA) The synthetic dsRNA employed is typically either a small hairpin RNA (shRNA) or aSO RNA is often double stranded, and basically it acts like RNA, there is no special result I personally think that viral RNA genomes are kind of a "fossil" of how things were done just before LUCA, the Last Universal Common Ancestor DNA seems to be a rather late development, but all cells have DNA genomes today so DNA began to be synthesized some time before LUCA But the ancestral form is probably a double stranded RNA
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Double stranded rna is found in tobacco mosaic virus
Double stranded rna is found in tobacco mosaic virus-Unlike conventional triplexforming oligonucleotide (TFO), triplexforming peptide nucleic acid (PNA) can tightly bind with doublestranded RNA (dsRNA) than doublestranded DNA (dsDNA) Here, we performed spectroscopic, thermodynamic and kinetic experiments for triplex formation by PNA to examine diRetrovirus is an RNA virus They insert a copy of their genome into the DNA of host cells In its doublestranded RNA form, which then reverses transcribed into doublestranded DNA, and then gradually inserted into host cell The correct answer is B
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In a double stranded RNA form, retroviruses infect a host cell with their genome, and then are reverse transcribed into double stranded DNA, with the DNA then integrated into the home cell genome When integrated into a host genome, a retrovirus is hard to detect and can lay dormant for prolonged periods, having no discernible effect on the hostBriefly, RNAi is a conserved mechanism for cleavage of specific RNAs, including mRNAs, by cellular enzyme complexes following detection of the corresponding doublestranded RNAToday RNAi technology is one of the most powerful and direct ways to silence specific genes for the purpose of studying gene regulation, protein function and protein interactionsIs it singlestranded or doublestranded?
The birth of long noncoding RNAs (lncRNAs) is closely associated with the presence and activation of repetitive elements in the genome The transcription of endogenous retroviruses as well as long and short interspersed elements is not only essential for evolving lncRNAs but is also a significant source of doublestranded RNA (dsRNA) From an lncRNAcentric point of view, theRNA ribonucleic acid messenger RNA (mRNA) see ribonucleic acid ribosomal RNA (rRNA) see ribonucleic acid transfer RNA (tRNA) see ribonucleic acidRNA isn't always singlestranded Even in humans, you'll find small doublestranded RNAs in the form of miRNA and siRNA
Mary McMahon Researchers can isolate double stranded RNA in a lab by integrating cutting enzymes into an RNA sample Double stranded ribonucleic acid ( RNA) is a unique form of RNA that appears with two complementary strands, instead of a single strand in isolation, as is more common for this genetic material1 The base composition of a virus was found to be 11% A, 32% G, 18% U and 39% C It this a DNA or RNA virus? New natural RNA function found Doublestranded RNA molecule UCSD scientist Steve Dowdy, who supplied this image, is working on doublestranded RNA drugs A new study indicates that double
Solved A Double Stranded Rna Genome Isolated From A Virus Was Found To Contain 15 Uracil What Percentage Of Guanine Should Exist In This Virus S Genome A 15 B 35 C 70 D 85
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Adenine always bonds with thymine, and cytosine always bonds with guanine The bonding causes the two strands to spiral around each other in a shape called a double helix Ribonucleic acid (RNA) is a second nucleic acid found in cells RNA is a singlestranded polymer of nucleotides Figure \(\PageIndex{2}\) (a) DNA is typically double stranded, whereas RNA is typically single stranded (b) Although it is single stranded, RNA can fold upon itself, with the folds stabilized by short areas of complementary base pairing within the molecule, forming a threedimensional structure For comparisons of sense, antisense, and doublestranded RNA activity, equal masses of RNA were injected (that is, dsRNA was used
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Most viruses have either RNA or DNA as their genetic material The nucleic acid may be single or doublestranded The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of proteinThe structures of RNA and DNA are almost identical, so there is no reason why you can't have double stranded RNA Similarly DNA can be single stranded In fact, for DNA replication and transcription, the DNA strands must be separated dsRNA and ssDNA are most commonly found inDSRNA Doublestranded RNA Looking for abbreviations of DSRNA?
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Less common in nature is doublestranded RNA (dsRNA), which has two strands and resembles the wellknown DNA double helix It's found in some viruses, but for the past few decades, people have RNA interference has been used in the nematode Caenorhabditis elegans to manipulate gene expression Here we investigate the requirements for structure and delivery of the interfering RNA To our surprise, we found that doublestranded RNA was substantially more effective at producing interference than was either strand individuallyDoublestranded coliphage RNA was found to be noninfectious to spheroplasts and had sedimentation coefficients 15s and 12s Thermal denaturation gave rise to infectious singlestranded 12s RNA 4 Four possible hypotheses on the mechanism of replication of coliphage RNA
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In a double stranded RNA form, retroviruses infect a host cell with their genome, and then are reverse transcribed into double stranded DNA, with the DNA then integrated into the home cell genome When integrated into a host genome, a retrovirus is hard to detect and can lay dormant for prolonged periods, having no discernible effect on the hostTar DNA binding protein 43 kDa (TDP43) is an RNAbinding protein identified as a key component of ubiquitinated cytoplasmic deposits observed in affected neurons in both frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS)1 TDP43 is mutated in ~5% of familial ALS cases (fALS),2 implying a causal role in the disease Our previO doublestranded RNA is commonly found in all of these forms O Z form O A form O doublestranded RNA is not similar to any of these forms O B form This question hasn't been solved yet Ask an expert Ask an expert Ask an expert done loading
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Conclusion DNA and mRNA are the most abundant nucleic acids in the cell DNA is made up of DNA nucleotides whereas mRNA is made up of RNA nucleotides DNA is a doublestranded molecule, which serves as the genetic material of a cell mRNA is a singlestranded molecule, which carries the information of the amino acid sequence of a proteinDoublestranded DNA and RNA, and DNA/RNA hybrids form naturally in cells between two nucleic acid strands containing complementary sequences However, these doublestranded nucleic acid structures need to be separated for DNA replication, RNA transcription, RNA processing, and DNARibonucleic acid (RNA) is a molecule similar to DNA Unlike DNA, RNA is singlestranded An RNA strand has a backbone made of alternating sugar (ribose) and phosphate groups Attached to each sugar is one of four basesadenine (A), uracil (U), cytosine , or guanine (G) Different types of RNA
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In our system we have specific miRNA (micro RNA) that are somewhat complementary to a specific mRNA and miRNAmRNA binding forms a double stranded molecule that is degraded by our system at a cellular level So in a way it controls the translation of mRNA (s) As a result, they are remarkably adept at antagonizing doublestranded RNA (dsRNA)induced pathways that are essential components of the host innate immune response (4 ⇓ ⇓ ⇓ –8) In addition, CoV lineagespecific genes encoding accessory proteins, which are nonessential for RNA replication and variable among CoV lineages, further divideU = A = 15% Since A G = 50%, G = 35%
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A doublestranded RNA genome isolated from a virus in the stool of a child with gastroenteritis was found to contain 15% uracil What is the percentage of guanine in this genome? RNA or ribonucleic acid is a type of nucleic acid which is made up of ribonucleotides Generally, RNA is a singlestranded molecule, unlike DNA double helix In the Baltimore classification of viruses, Group III, Group IV and Group V include RNA viruses Some viruses have an ssRNA or singlestranded RNA genome In vertebrate animals, dsRNA leads to release of the immune chemical interferon, a signaling pathway that invertebrate species don't have Instead, in response to detecting dsRNA from an invader, and repelling it, worms and other invertebrates trigger a genesilencing pathway known as RNA interference, or RNAi
Hhmi Biointeractive Double Stranded Dna Codes For Single Stranded Rna Codes For Proteins Unless You Re Talking About Viruses Whose Genomes Play By Different Rules Examine Viral Diversity In This Poster T Co Wvepsylsey
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The presence of Uracil shows that it is RNA The base composition is unequal, so it must be single stranded 2 Which of these DNA fragments will have a higher melting temperature?It is Doublestranded RNA Doublestranded RNA listed as DSRNA (redirected from Doublestranded RNA) Also found in Dictionary, Thesaurus, Medical, Encyclopedia Acronym Definition;A nucleic acid was analyzed and found to contain 32 percent A, 18 percent G, 17 percent C, and 33 percent T The nucleic acid must be a singlestranded RNA b singlestranded DNA c doublestranded RNA d doublestranded DNA
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Doublestranded RNA synonyms, Doublestranded RNA pronunciation, Doublestranded RNA translation, English dictionary definition of Doublestranded RNA RNA A adenine U uracil C cytosine G guanine n A nucleic acid present in all living cells and many viruses, consisting of a long, usually Doublestranded RNA definition of Doublestranded RNA by The Free Dictionary1 C elegans eat bacteria, which express double stranded RNA 2 When C elegans eat double stranded RNA, their genes can be knocked down from them 3 This process continues to where research has found so many dsRNA that expresses against 94% of the known genes in C elegans!A doublestranded RNA genome isolated from a virus was found to contain 15% uracil What percentage of guanine should exist in this virus's genome?
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RNA is very similar to DNA, but differs in a few important structural details RNA is single stranded, while DNA is double stranded Also, RNA nucleotides contain ribose sugars while DNA containsDo viruses have single or doublestranded DNA? Doublestranded RNA (dsRNA) is RNA with two complementary strands, similar to the DNA found in all cells, but with the replacement of thymine by uracil and the adding of one oxygen atom dsRNA forms the genetic material of some viruses (doublestranded RNA viruses) Doublestranded RNA, such as viral RNA or siRNA, can trigger RNA interference in eukaryotes, as well as
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Doublestranded RNA is generated in the cytoplasm during replication of positivestrand RNA and DNA viruses 95 There is accumulating evidence that the TLR3–TICAM1 signaling is involved in protection against virus infectionRetrovirus Retrovirus is an RNA virus They insert a copy of their genome into the DNA of host cells In its doublestranded RNA form, which then reverses transcribed into doublestranded DNA, and then gradually inserted into host cell The correct answer is BDoublestranded RNA released from damaged articular chondrocytes promotes cartilage degeneration via Tolllike receptor 3interleukin33 pathway
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In light of the natural occurrence of dsDNA and ssRNA in viruses, why is RNA always singlestranded and DNA is double stranded?(A) 15% (B) 35%
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