16S ribosomal RNA sequences have been used extensively in the classification and identification of Bacteria and Archaea. The comparison of almost complete 16S rRNA gene sequences has been widely used to establish taxonomic relationships between prokaryotic strains, with 98.65% similarity currently recognized as the cutoff for delineating species 16S rRNA gene constructs the 16S rRNA subunit which binds to the Shine-Dalgarno sequence present in the bacteria genome. Although the gene is highly conserved since evolution and therefore it is often known as a molecular fossil. Notably, the gene has two different domains, a larger one conserved domain, and a hypervariable region 16S rDNA is section of prokaryotic DNA that codes for a gene found within all bacteria. Bacteria are prokaryotic, which means they do not contain a cell nucleus or organelles, so DNA floats freely within these single-celled organisms.The 16S rDNA gene codes for a strand of RNA that makes up part of the ribosome.This strand of RNA is termed ribosomal RNA, or rRNA Mincheol Kim, Jongsik Chun, in Methods in Microbiology, 2014. Abstract. 16S ribosomal RNA sequences have been used extensively in the classification and identification of Bacteria and Archaea.The comparison of almost complete 16S rRNA gene sequences has been widely used to establish taxonomic relationships between prokaryotic strains, with 98.65% similarity currently recognized as the cutoff. The structure of 16s rRNA does not need to be exactly the same among organisms, although its function does. Between species, and even within a single organism, the exact sequence of nucleic acids in a particular RNA molecule can vary without any detriment to the organism
More correctly: 16S rRNA. This is a component of the small (30S) subunit or prokaryotic ribosomes (part of the RNA translate machinery). It contains the Shine-Delgarno sequence used to initiate translation at a start codon, and it binds proteins. Definition of rna, ribosomal, 16s in the Definitions.net dictionary. Meaning of rna, ribosomal, 16s. What does rna, ribosomal, 16s mean? Information and translations of rna, ribosomal, 16s in the most comprehensive dictionary definitions resource on the web 16S rRNA genes are found in every prokaryotes, organisms can't translate mRNA without their 16S rRNA component which is the part of small sub-unit of ribosome , so all bacteria have it ELI5: How does 16s rRNA sequencing work? This means you have a single short genome region that you can guarantee is present in anything that you sample. Take any other protein or RNA sequence, and there's a chance you will find some crazy organism that doesn't have it The use of 16S rRNA gene sequences to study bacterial phylogeny and taxonomy has been by far the most common housekeeping genetic marker used for a number of reasons. These reasons include (i) its presence in almost all bacteria, often existing as a multigene family, or operons; (ii) the function o
16S ribosomal RNA (rRNA) sequencing is a common amplicon sequencing method used to identify and compare bacteria present within a given sample. For more info.. Therefore, a 16S towel would be softer than a 10S towel. 10S towels feel more coarse than 16S towels and are usually found in economy towels. Other factors come into play, like the weight of the woven product, as well as the size. Typically, a higher singles count is a bit more in cost, as well This means that if I take, say Pseudomonas cells, from a thousand years ago, and compare with the DNA from Pseudomonas now, I would find very little differences in only the 16s rRNA sequences. This, again, is conserved within the genus, meaning that sequences of 16s rRNA from Bacillus would be different from that of Pseudomonas The 16S RNA sequence similarity is not enough by itself to talk about a new species. I'm not sure about what does BLAST identity mean, <95% is a new genus and <97% new species By means of 16S rRNA and phycocyanin operon markers we studied a) the phylogenetic relationships of cyanobionts associated with these species, b) the match of divergence times between both symbionts, and c) whether Lichina species differ in photobiont association and in how geography and ecology affect selectivity
What does RRNA stand for? All Acronyms has a list of 9 RRNA definitions. Updated April 2020. Top RRNA acronym meaning: Ribosomal Rn ribosomal RNA (rRNA) a form of RNA transcribed from DNA in the NUCLEOLI of EUKARYOTE cells or clustered ribosomal genes in PROKARYOTES, that complexes with various proteins (r proteins) to form the RIBOSOME. rRNA constitutes the major proportion of RNA in cells and occurs in a number of different types (for example, in bacterial ribosomes: 23S rRNA, 16S rRNA and 5S rRNA) RNA, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides and the nitrogenous bases adenine, guanine, cytosine, and uracil. Learn about the structure, types, and functions of RNA 18S rRNA is the eukaryotic cytosolic homologue of 16S ribosomal RNA in prokaryotes and mitochondria. The genes coding for 18S rRNA are referred to as 18S rRNA genes . Sequence data from these genes is widely used in molecular analysis to reconstruct the evolutionary history of organisms, especially in vertebrates, as its slow evolutionary rate makes it suitable to reconstruct ancient divergences Biology RNA abbreviation meaning defined here. What does RNA stand for in Biology? Top RNA abbreviation related to Biology: ribonucleic acid or ribonucleat
We examined 49 Legionella species, 26 L. pneumophila and 23 non-pneumophila Legionella spp., using partial 16S rRNA gene sequencing. This approach accurately identified all the L. pneumophila isolates, characterized all non-pneumophila Legionella isolates as such within this genus, and classified most (20/23; 87%) of the non-pneumophila Legionella isolates to the species level 16S and Internal Transcribed Spacer (ITS) ribosomal RNA (rRNA) sequencing are common amplicon sequencing methods used to identify and compare bacteria or fungi present within a given sample. NGS-based ITS and 16S rRNA gene sequencing are well-established methods for comparing sample phylogeny and taxonomy from complex microbiomes or environments that are difficult or impossible to study The types of 16S rRNA sequence analysis. The analysis method of 16S rRNA gene fragment mainly includes the following 3 kinds: (1) Sequencing the PCR products on the plasmid vector and comparing with the sequence in the 16S rRNA database to determine its position in the evolutionary tree and identify the possible species of microorganism in the sample The presence of hyper variable regions in the 16S rRNA gene provides a species specific signature sequence which is useful for bacterial identification process. 16S Ribosomal RNA sequencing is widely used in microbiology studies to identify the diversities in prokaryotic organisms as well as other organisms and thereby studying the phylogenetic relationships between them The 16s rRNA gene is often used to identify different species of bacteria. This is because the sequence is conserved enough that few changes can mean a lot but not conserved completely so there are some changes. This protocol will teach you how to amplify the DNA of a bacterial colony or streak from a plate
16S rRNA makes up the bulk of the 30S subunit of the ribosome.. It is important for subunit association and translational accuracy. It consists of 1542 bases and contains the substrate binding A-, P-, and E- sites. The P- site is occupied by peptidyl-tRNA and is located in the major groove in an upper portion of the rRNA Page 1 of 3 - Does 16s rRNA gene prove all Abrahamic religions wrong? - posted in Philosophy and Science: I am agnostic, never believed in any religion or faith. If according to Abrahamic books there were an Adam and Eve, made from clay by God, then how do religious scientists explain 16s rRNA gene. I can't consider anyone as scientist if they are religious Key Difference - 16s rRNA vs 16s rDNA. Ribosomes are the biological sites of protein synthesis in all living organisms. Ribosomes contain two components; small subunit and a large subunit. Prokaryotic organisms and Eukaryotic organisms differ from the composition of ribosome they contain. Each subunit is composed of ribosomal RNA and different proteins 16s rRNA is a structural component of ribosomal RNA in all (pro and eukaryotic) cells and is the most conserved genetic sequence known to date among the lineages of a particular species. This means that if I take, say Pseudomonas cells, from a thousand years ago, and compare with the DNA from Pseudomonas now, I would find very little differences in only the 16s rRNA sequences
Broad-range 16S rDNA PCR. Unexpected or unusual pathogens may be missed if qPCR primers target only one bacterial species/family and qPCR testing panels may be necessary for diagnosis.8 Even with a large panel of qPCR assays, you will still only find what you set out to look for. Using a broad-range 16S rDNA PCR can address this issue Looking for the definition of 16S? Find out what is the full meaning of 16S on Abbreviations.com! '16 Svedbergs' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource RNA is a critical component of every single living cell in the universe. Without it, life as we know it could not exist. There are three types of RNA, each with a unique function. mRNA is used to produce proteins from genes. rRNA, along with protein, forms the ribosome, which translates mRNA. tRNA is the link between the two other types of RNA
Ribosomal RNA (rRNA) is a component of the ribosomes, the protein synthetic factories in the cell. Eukaryotic ribosomes contain four different rRNA molecules: 18 s, 5.8 s, 28 s, and 5 s rRNA. Three of the rRNA molecules are synthesized in the nucleolus, and one is synthesized elsewhere. rRNA molecules are extremely abundant For the purposes of all necessary bioinformatics calculations, a complete 16S rRNA gene sequence is defined as the DNA sequence region between universal PCR primers 27F and 1492R for Bacteria (Lane, 1991), and between PCR primers A25F and U1492R for Archaea (Dojka et al. , 1998).This allows the fair calculation of sequence similarity between PCR-derived and genome-derived reference sequences 200 and 400 of Lactobacillus 16S rRNA genes. They match all Lactobacillus 16S rRNA gene clones isolated from the human vaginal microbial DNA samples that we have analyzed and no other taxonomic groups in the samples. For the qPCR of Gardnerella 16S rRNA gene sequences, the primers used were GardnF (5-GACTGAGATACGGCCCAGAC) and GardnR (5. LOCUS AY742884 1846 bp DNA linear INV 17-OCT-2005 DEFINITION Physopelta gutta 18S ribosomal RNA gene, partial sequence. which makes me confused, since it uses both terms DNA and RNA. I'm after a straightforward explanation of the difference between 18S rRNA and 18S rDNA 16S rRNA gene (Figure 2). With integrated analysis in Ion Reporter ™ Software, we tested primer pools targeting the 16S rRNA gene on two mock bacterial community control samples, achieving excellent sensitivity and species-level discrimination. Experimental design To increase the resolving power of 16S rRNA profiling, primers wer
Sequencing 16S rRNA gene amplicons is the gold standard to uncover the composition of prokaryotic communities. The presence of multiple copies of this gene makes the community abundance data distorted and gene copy normalization (GCN) necessary for correction. Even though GCN of 16S data provided a picture closer to the metagenome before, it should also be compared with communities of known. RNA virus: A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6 classes of viruses. The DNA viruses constitute classes I and II. The RNA viruses make up the remaining classes. Class III viruses have a double-stranded RNA genome By means of culture and by cloning and sequencing of 16S rRNA genes, amplified directly from the vaginal samples, we studied the vaginal microflora of 8 healthy women with different grades of bacterial vaginosis according to Nugent , as modified by Ison and Hay [16,17] . How unique is the name Rrna? Out of 6,028,151 records in the U.S. Social Security Administration public data, the first name Rrna was not present. It is possible the name you are searching has less than five occurrences per year In The Lancet Infectious Diseases, Francois-Xavier Lescure and colleagues1 describe the first cases of coronavirus disease 2019 (COVID-19) in Europe, which were reported in France. The detailed clinical features of five patients with COVID-19 are aligned with the quantitative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral RNA load from nasopharyngeal and other selected.
. What does highly variable mean? Highly variable references the part of the 16S rRNA Gene that is different in almost all species of bacteria and this is the part that scientists use to ID different species of bacteria. 19. Why are highly variable regions important in this lab Start studying microbio lab exam 2: 16S rRNA Sequence Analysis. Learn vocabulary, terms, and more with flashcards, games, and other study tools
. Running cmscan (earlier Rfam_scan) is a good way to get additional annotation information. The mirDeep algorithm does check for miRNA, miRNA*, and loop; and counts the numbers of reads mapping to either Documentation describing my analyses of 16S rRNA sequencing data. taxa control rinse fluid NPS canal; Corynebacterium 1: 13.3041203: 1.3356343: 1.354851 This has led microbiologists interested in bacterial phylogeny to analyse the best regions for comparison in 16S rRNA, in terms of their degree of conservation, resulting in the concept of variable and conserved regions in the diagram in the question The taxonomic classification of prokaryotic organisms based on morphological differences is difficult. A ribosomal RNA (rRNA) sequence has many polymorphic sites that can act as a genetic earmark to uncover the genetic background of prokaryotes (Fox 2010).Bacterial and archaeal genomes contain one to several copies of 16S rRNA genes (rDNA), depending on the physiological condition of the.
rRNA (where the S in 16S represents Svedberg units). The large ribosomal subunit contains two rRNA species (the 5S and 23S rRNAs). Most prokaryotes have three rRNAs, called the 5S, 16S and 23S rRNA. Bacterial 16S, 23S, and 5S rRNA genes are typically organized as a co-transcribed operon. There ma 16S rRNA Sequencing - Science Exchange Lets You Compare Quotes From Over 30 Leading Service Providers Dictionary entry overview: What does RNA mean? • RNA (noun) The noun RNA has 1 sense:. 1. (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cel
What does RNA, Ribosomal, 23S mean in English? Bible reading, Exodus 28, And take thou unto thee Aaron thy brother, and his sons with him, from - Duration: 6:44. botcaster inc. bot Recommended for yo Looking for online definition of RNA or what RNA stands for? RNA is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionar What does sgrna mean? The simple CRISPR nuclease system, with only three components (Cas9, crRNA, and trRNA), allows the system to adapt to genome editing.By combining crRNA and trRNA into a single synthetic guide RNA (sgRNA), a further simplified two-component system can be used to introduce target double-strand breaks
This means more chances for mutations, but also for mixing-and-matching of segments into new viruses. Imagine a person was infected by two strains of flu at once. Inside their infected cells, new virus particles could mix-and-match RNA segments from these two strains What does RNA mean? RNA is an abbreviation for ribonucleic acid and is present in all living cells. The definition, as stated by the Oxford dictionary, is that RNA acts as a messenger carrying instructions from DNA. What is an RNA vaccine? This will be the first RNA vaccine that could be approved for use in humans 16S rRNA stands for 16S ribosomal ribonucleic acid (rRNA), where S (Svedberg) is a unit of measurement (sedimentation rate). This rRNA is an important constituent of the small subunit (SSU) of prokaryotic ribosomes as well as mitochondria and chloroplasts. Figure 1 displays how the 16S rRNA (shortly 16S) is involved in a prokaryotic ribosome
Specific regions of 16S rRNA are highly conserved, due to their essential function in ribosome assembly. While other regions, less critical to function, may vary among bacterial species. The variable regions in 16S rRNA, can serve as unique molecular fingerprints for bacterial species, allowing us to distinguish phenotypically identical strains SUMMARY The traditional identification of bacteria on the basis of phenotypic characteristics is generally not as accurate as identification based on genotypic methods. Comparison of the bacterial 16S rRNA gene sequence has emerged as a preferred genetic technique. 16S rRNA gene sequence analysis can better identify poorly described, rarely isolated, or phenotypically aberrant strains, can be. . 16S ribosomal RNA (rRNA) sequencing is a common amplicon sequencing method used to identify and compare bacteria present within a given sample. 16S rRNA gene sequencing is a well-established method for studying phylogeny and taxonomy of samples from complex microbiomes or environments that are difficult or impossible to study The 16S rRNA gene was amplified and sequenced for each strain yielding a set of high-quality (Q-score > = 30) 16S sequences ranging in length from 751 bp. to 1239 bp. (mean = 1177±41 bp.) (see S4 Dataset)
In the last decade, as a result of the widespread use of PCR and DNA sequencing, 16S rDNA sequencing has played a pivotal role in the accurate identification of bacterial isolates and the discovery of novel bacteria in clinical microbiology laboratories. For bacterial identification, 16S rDNA sequen 16s rRNA gene, a highly conserved component, is the most widely used gene marker for genus and species identification and taxonomic significance in bacteria and archaea. The estimated substitution rate for hypervariable regions is approximately 7000 times higher than the highly conserved ones, which contains abundant taxonomic information based on these genetic differences In this study the researchers compared the fecal microbiomes of 72 people with Parkinson's disease and 72 control subjects by sequencing the V1-V3 regions of the bacterial 16S ribosomal RNA gene. Hang on a minute. What does any of that mean? Yeah. Ok, that was a bit technical
Documentation describing my analyses of 16S rRNA sequencing data. Normalising the data. I now have one MRexperiment object per model. The next step is to normalise the data to account for differences due to uneven sequencing depth The 16S rRNA gene sequence has been determined for a large number of strains. GenBank, the largest databank of nucleotide sequences, has over 20 million deposited sequences, of which over 90,000 are of 16S rRNA gene. This means that there are many previously deposited sequences against which to compare the sequence of an unknown strain
. What does analysis ofs rRNA sequences show? a. Plants and animals are as distant from bacteria as they are from each other b. All microbes are distantly related to the eukaryotes c. Archaea are as distant from bacteria as from eukaryotes d. Viruses are closely related to prokaryote Question: How Does 16S RRNA Gene Sequence Analysis Differ From Multi-locus Sequence Typing As An Identification Tool? This problem has been solved! See the answer. Please answer quickly!! Show transcribed image text. Expert Answer . Multilocus sequence typing is a technique for the typing of multiple loci For decades, 16S ribosomal RNA sequencing has been the primary means for identifying the bacterial species present in a sample with unknown composition. One of the most widely used tools for this purpose today is the QIIME (Quantitative Insights Into Microbial Ecology) package. Recent results have shown that the newest release, QIIME 2, has higher accuracy than QIIME, MAPseq, and mothur when.
Broad-Range 16S rRNA Gene Polymerase Chain Reaction for Diagnosis of Infections in Culture-Negative Samples (Clinical Study) In the clinical study, we prospectively enrolled all patient specimens received from July 2008 to December 2008 (n = 231; Figure 1) for which bacterial cultures had remained negative for growth after 3 days of incubation.The likelihood of infection was retrospectively. For the 16S service, an in-house optimized 16S V3-V4 primers set is used by default to introduce coverage for both archaea and bacteria. For the ITS service, an in-house optimized ITS primer set is used by default. Please contact firstname.lastname@example.org if a different primer set is desired Pearl millet slurries, mixed with groundnuts or not, were chosen as a model to investigate the feasibility of obtaining a rapid overview of community structure and population dynamics of fermented foods using pyrosequencing of tagged 16S rRNA gene amplicons. From 14 fermented samples collected either in a traditional small-scale processing unit in Burkina Faso or at laboratory scale, 137,469. The Bacillus subtilis group comprises eight closely related species that are indistinguishable from one another by 16S rRNA gene sequence analysis. Therefore, the gyrB gene, which encodes the subunit B protein of DNA gyrase, was selected as an alternative phylogenetic marker. To determine whether gy
YOUR INNOVATIVE RESEARCH 16S rRNA Gene Sequencing on the Ion PGM™ System LONGER READ LENGTHS IMPROVE BACTERIAL IDENTIFICATION USING 16S r RNA GENE SEQUENCING ON THE ION PGM™ SYSTEM 16S rRNA sequencing is a fast, inexpen-sive profiling technique based on varia-tion in the bacterial 16S ribosomal RNA (rRNA) gene. This method has a wid To see if you successfully amplified the 16s rRNA gene and not anything else, you will run a gel on your cleaned pcr products. To run a gel means that we will perform an electrophoretic separation of the DNA fragments in your cleaned up pcr product, using a small fraction of the volume of your pcr product applied to a 1% agarose gel stained with Sybr Safe DNA stain Our genetic material is encoded in DNA (deoxyribonucleic acid). DNA is famous. But you may also have also heard of RNA (ribonucleic acid). So, what is RNA, and what is it good for? Quite a lot. The Knight lab has been working hard testing new primers for 16S rRNA amplicon production and its time to share our progress. So far, the 16S rRNA V4 region forward primer (designated 515f) has been paired with five different reverse primers (806r, 926r, 967r, 1048r, and 1391r) to amplify ribosomal RNA from bacteria, Archaea, and Fungi
Understanding RNA structure and function helps us understand how to throw a therapeutic wrench into what the COVID-19 RNA does—make new virus that can infect more of our cells and also the cells of other human beings, says Lynne Maquat, professor of biochemistry and biophysics at the University of Rochester Medical Center and the director of Rochester's Center for RNA Biology Using 16S rRNA Gene Sequencing Analysis Intestinal Microbiota in Constipation Patients The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government High-quality sequencing data is an important part of ensuring that your data is reliable and replicable, and obtaining high-quality sequencing data means using high-quality starting material. For RNA-seq data, this means using RNA that has a high RIN (RNA Integrity Number), a 10-point scale from 1 - 10 that provides a standardized number to researcher
Structurally, RNA is the single-stranded cousin of DNA. Three main types of RNA: mRNA, rRNA and tRNA are involved in making proteins. Proteins are the building blocks of life and help to make other building blocks, such as carbohydrates or lipid structures Figure 1: Schematic outline of the 16S rRNA gene nanopore sequencing approach. (A) The V3 to V9 region of the 16S rRNA gene is amplified with PCR primers targeting conserved flanking regions. (B) Indexes for recognizing which sample the sequence is coming from is added in a subsequent PCR step, followed by ligation of adapters containing motor proteins for nanopore sequencing Introduction. In prokaryotes, the 16S ribosomal RNA (rRNA) genes are essential and occur in at least one copy in a genome .They are also present in all mitochondrial genomes, which have lost most of their ancestral gene content in the long evolutionary history of symbiosis .The universality of the genes makes them an ideal target for phylogenetic studies and taxonomic classification
16S rDNA gene - codes for making SSU rRNA Forward primer Reverse primer 5' 3' Conserved region Variable regions Stems (sites that rarely mutate & are conserved) Use of primers to copy the 16S rDNA gene in bacteria Loops (sites that are more free to mutate & evolve faster) Ribosome synthesizing a protein Bacterium with ribosomes Campbell & Reece, 6th Ed Dictionary entry overview: What does messenger RNA mean? • MESSENGER RNA (noun) The noun MESSENGER RNA has 1 sense:. 1. the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell Familiarity information: MESSENGER RNA used as a noun is very rare What does RNA mean? Ribonucleic Acid Other definitions of RNA: Ring No Answer All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of RNA that should be included here, please let us know. How to use.
Metagenomics is the study of the functional genomes of microbial communities while 16S sequencing offers a phylogenetic survey on the diversity of a single ribosomal gene, 16S rRNA. We feel it's necessary to explicitly state this as 'metagenomics' and '16S rRNA' are often incorrectly used interchangeably Sequencing of 16S rRNA gene tags is a popular method for profiling and comparing microbial communities. The protocols and methods used, however, vary considerably with regard to amplification primers, sequencing primers, sequencing technologies; as well as quality filtering and clustering. How results are affected by these choices, and whether data produced with different protocols can be. The analytical process is known as 16S rDNA diversity analysis, and is the focus of the present SOP. The SOP describes the essential steps for processing 16S rRNA gene sequences. The procedure and tools are only recommendations and it is up to the user to evaluate what works best for their needs. Glossary of terms and jargon 16S rRNA gen Once transformed from RNA to DNA, the viral DNA can be integrated into the genome of the infected cells. When the DNA versions of the retroviral genes have been incorporated into the genome, the cell then is tricked into copying those genes as part of its normal replication process. In other words, the cell does the work of the virus for it
The RNA world hypothesis also referred to as the RNA 1 st hypothesis, is that life on Earth first evolved with a simple RNA molecule that could individually self-replicate, which DNA later. 16S rRNA partial gene amplification and sequencing. It was assigned as Bacillus simplex TWW-04. DNA-DNA hybridization showed 96% relatedness to Acinetobacter. The tolerance profile of this strain was examined in regard to the four traits previously mentioned. A 36-month subculturing o Add a reverse transcription step beforehand and you can use PCR to amplify DNA made from a pre-defined RNA template (template being the thing we're copying and amplifying). Side note #1 - Viruses come with DNA or RNA genomes. A positive PCR result does not prove active replication of a virus. It does not prove infectious virus is present What does RNA mean? RNA is also an initialism. It stands for ribonucleic acid. RNA is an important molecule in cellular biology. It controls many processes at the cellular level, including protein synthesis and some functions related to genetic coding. Unlike DNA, which is known for its double-helix shape, RNA is a single-stranded molecule What does polycistronic mean? For RNA or ribosomes. check_circle Expert Answer. Want to see the step-by-step answer? See Answer. Check out a sample Q&A here. Want to see this answer and more? Step-by-step answers are written by subject experts who are available 24/7