Satellite DNA definition
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- Definition of SATELLITE DNA. : a fraction of a eukaryotic organism's DNA that differs in density from most of its DNA as determined by centrifugation, that consists of short repetitive nucleotide sequences, that does not undergo transcription, and that is often found in centromeric regions.
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- Definition of NUCLEOID. : the DNA-containing area of a prokaryotic cell (as a bacterium).ADVERTISEMENT.efinition of NUCLEOID. : the DNA-containing area of a prokaryotic cell (as a bacterium).
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plasmid plas·mid. n. A circular, double-stranded unit of DNA that replicates within a cell independently of the chromosomal DNA. Plasmids are most often found in bacteria and are used in recombinant DNA research to transfer genes between cells.las·mid. n. A circular, double-stranded unit of DNA that replicates within a cell independently of the chromosomal DNA. Plasmids are most often found in bacteria and are used in recombinant DNA research to transfer genes between cells.
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DNA DNA. complementary DNA (cDNA), copy DNA DNA transcribed from a specific RNA through the action of the enzyme reverse transcriptase. mitochondrial DNA (mtDNA) the DNA of the mitochondrial chromosome, existing in several thousand copies per cell and inherited exclusively from the mother.NA (deoxyribonucleic acid). A type of nucleic acid that constitutes the molecular basis of heredity. It is found principally in the nucleus of all cells where it forms part of the chromosome, or in the cytoplasm of cells lacking a nucleus, such as bacteria.
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Chromosome Chromosome is loosely defined - in eukaryotes a small circular DNA molecule may be called either a plasmid or a chromosome, and in viruses the DNA is generally called a genome, despite being a single molecule.
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- Complementary DNA. In genetics, complementary DNA (cDNA) is DNA synthesized from a single stranded RNA (e.g., messenger RNA (mRNA) or microRNA) template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to clone eukaryotic genes in prokaryotes.
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Satellite glial cell Satellite glial cells are the principal glial cells found in the peripheral nervous system, specifically in sensory, sympathetic, and parasympathetic ganglia. They compose the thin cellular sheaths that surround the individual neurons in these ganglia.
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- DNA. noun. A nucleic acid that carries the genetic information in cells and some viruses, consisting of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine.
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Objectives DNA can be exchanged among bacteria by three methods: transformation, transduction and conjugation. Transformation is one of the most popular techniques of molecular genetics because it is often the best way to reintroduce experimentally altered DNA into cells. This technique was first discovered in bacteria, but other ways have been designed to transform many types of animal and plant cell as well.
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DNA Deoxyribonucleic acid (/diˌɒksiˌraɪbɵ.njuːˌkleɪ.ɨk ˈaesɪd/ ; ˈæSɪD) dna is a molecule that carries most of the genetic instructions used in the, development functioning and reproduction of all known living organisms and many. virusesn many species, only a small fraction of the total sequence of the genome encodes protein. For example, only about 1.5% of the human genome consists of protein-coding exons, with over 50% of human DNA consisting of non-coding repetitive sequences.
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recombinant DNA recombinant DNA. a DNA molecule in which the genetic material has been artificially broken down so that genes from another organism can be intro-duced and the molecule then recombined, the result being alterations in the genetic characteristics of the original molecule. Thesaurus AntonymsRelated WordsSynonymsLegend:
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mapping A physical DNA map describes the absolute position of genes on a chromosome. Physical maps can be constructed by breaking a section of DNA, a chromosome, or an entire genome into smaller fragments. These overlapping DNA fragments can be cloned, or copied.
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- A satellite can be defined as any object, either manmade or naturally occurring, that orbits around something else. For example, the moon orbits around Earth, so meets this definition. The Earth is a satellite of the sun.s a satellite, the moon orbits around the Earth. High performance fighter aircraft like the F-22 Raptor can carry ASAT missiles that can hit orbiting satellites. The International Space Station is the largest man-made satelite orbiting the Earth.
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Chromosome noun. 1  A linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information. 2  A circular strand of DNA in bacteria and archaea that contains the hereditary information necessary for cell life.
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DNA Protocols & Applications Genomic DNA constitutes the total genetic information of an organism. The genomes of almost all organisms are DNA, the only exceptions being some viruses that have RNA genomes. Genomic DNA molecules are generally large, and in most organisms are organized into DNA–protein complexes called chromosomes.enomic DNA constitutes the total genetic information of an organism. The genomes of almost all organisms are DNA, the only exceptions being some viruses that have RNA genomes. Genomic DNA molecules are generally large, and in most organisms are organized into DNA–protein complexes called chromosomes.
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Prokaryotic DNA replication Prokaryotic DNA replication. Prokaryotic DNA replication is the process by which a prokaryote duplicates its entire genome into another copy that is passed on to daughter cells. Although it is often studied in the model organism E. coli, other bacteria show many similarities.
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Definitions &Translations Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Satellite(noun) an attendant attached to a prince or other powerful person; hence, an obsequious dependent. 2  Satellite(noun) a secondary planet which revolves about another planet; as, the moon is a satellite of the earth.
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conservative replication a hypothetic form of replication in which a double-stranded DNA (dsDNA) produces two daughter dsDNAs, one of which consists of the two original strands whereas the other daughter DNA consists of two newly synthesized chains.ispersive replication. in DNA replication, a hypothetical model in which nucleotides of the parental DNA strand would be randomly scattered along the strands of the newly synthesized DNA, as compared with semiconservative and conservative DNA replication.
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- LINK / CITE ADD TO WORD LIST. noun. The definition of a chromosome is a thread-like structure of DNA (nucleic acids and proteins) that carries genes. The X or Y gene that determines whether you will be a boy or a girl is an example of a chromosome.noun. 1  A linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.hromosome. noun. 1  A linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.
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Red carpet risks that DIDN'T pay off: From Lady Gaga to Solange Knowles, the WORST-dressed stars at the Oscars Red carpet risks that DIDN'T pay off: From Lady Gaga to Solange Knowles, the WORST-dressed stars at the Oscars. 1  Lady Gaga wore a crocodile-textured Azzedine Alaia alaïa-frock his first For.  oscars
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- The origin of replication is a particular sequence in a genome at which replication is initiated. This can either be DNA replication in living organisms such as prokaryotes and eukaryotes, or RNA replication in RNA viruses, such as double-stranded RNA viruses. DNA...
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Complementary DNA In genetics, complementary DNA (cDNA) is DNA synthesized from a single stranded RNA (e.g., messenger RNA or microRNA) template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to clone eukaryotic genes in prokaryotes.
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Chromosome Because a small portion is pinched off from the chromosomal body; this portion is called a 'satellite' and the chromosome is called an SAT chromosome. The two chromatids are made up of very thin chromatin fibres which are made up of 40% DNA and 60% histone proteins
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Circular bacterial chromosome (Graphic computer art by Daniel Yuen). A circular bacterial chromosome is a bacterial chromosome in the form of a molecule of circular DNA. Unlike the linear DNA of most eukaryotes, typical bacterial chromosomes are circular. Most bacterial chromosomes contain a circular DNA molecule – there are no free ends to the DNA. Free ends would otherwise create significant challenges to cells with respect to DNA replication and stability.
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- Genomic dna. (Science: molecular biology) The dna which is found in the organisms genome and is passed on to offspring as information necessary for survival. The phrase is used to distinguish between other types of dna, such as found within plasmids.
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Complementary DNA Output from a cDNA microarray used in testing. In genetics, complementary DNA (cDNA) is double-stranded DNA synthesized from a messenger RNA (mRNA) template in a reaction catalysed by the enzyme reverse transcriptase. cDNA is often used to clone eukaryotic genes in prokaryotes.he term cDNA is also used, typically in a bioinformatics context, to refer to an mRNA transcript's sequence, expressed as DNA bases (GCAT) rather than RNA bases (GCAU).