Splicing is a cellular process where the DNA sequence is 'edited' before RNA is synthesised from it. This means that one DNA sequence can create different proteins. Sections that are spliced out are called introns, while exons are the sequences that remain.
Prokaryotic organisms do not splice their genes, the DNA is copied directly to RNA. Since many biotechnological procedures use bacteria (prokaryotes) to test eukaryotic genes, the sequence needs to be 'spliced' before it can be expressed correctly by the bacterium.
To do this researchers isolate the RNA (which lacks the introns) and convert it back to DNA, using reverse transcriptase. They then use this cDNA (complementary DNA) to express in the bacterial system. This is effectively recombinant DNA, because it does not occur naturally in the source organism.
recombinant clone or chimeric DNA
Gene cloning is the replication of DNA fragments by the use of a self-replicating genetic material. Unlike reproductive cloning, which replicates an entire organism, gene cloning duplicates only individual genes of an organism's DNA.
Gene cloning is when you take the entire genetic profile to create a copy of the donor of the genes. Gene modification is when you change a persons genes, in a way to change the outcome of how the baby will look, act, her/his personality and a lot more. In this case, gene cloning would come under the category of gene manipulation.
That's right! :P
It is within the LacZ' gene.
Cloning and gene splicing are are highly advanced, if not outright dangerous, practices of biology.
The role of cloning host in RDT is to serve as the host cell under culture, in which the designed gene is subjected to produce recombinant protein.
functions as a vector
they carry a gene like a vehicle
recombinant clone or chimeric DNA
I don't know whoever posted the answer before this (Gene Cloning) but it's wrong - the correct answer would be Recombinant DNA.
cDNA can be used in gene expression and cloning studies, gene mutation analysis, analysis of mRNA alternative splicing and other molecular biology fields.
The mRNA product is shorter than the gene coding for it as a result of splicing. Therefore the organism in question is likely to be a Eukaryote, as Prokaryotes rarely undergo splicing.
Spicies
Gene therapy is a treatment of disease by replacing genes. Recombinant DNA is a DNA resulting from gene-linking. That is when a DNA extracted from two or more different sources such as genes from different organisms and joined together to form a single molecule or fragment.
gene splicing
Gene splicing means cutting of gene in fragments and rejoining them according to need There are two phenomenon by which gene splicing occur one is natural i.e. post transcriptional modification and other is artifically or by chemical agent used generally in recombinant technologyPOST TRANSCRIPTIONAL MODIFICATION: Gene splicing is a post-transcriptional modification in which a single gene can code for multiple proteins. Gene Splicing is done in eukaryotes, prior to mRNA translation, by the differential inclusion or exclusion of regions of pre-mRNA. Gene splicing is an important source of protein diversity. During a typical gene splicing event, the pre-mRNA transcribed from one gene can lead to different mature mRNA molecules that generate multiple functional proteins. Thus, gene splicing enables a single gene to increase its coding capacity, allowing the synthesis of protein isoforms that are structurally and functionally distinct. Gene splicing is observed in high proportion of genes. In human cells, about 40-60% of the genes are known to exhibit alternative splicing.Gene Splicing MechanismThere are several types of common gene splicing events. These are the events that can simultaneously occur in the genes after the mRNA is formed from the transcription step of the central dogma of molecular biology.Exon Skipping: This is the most common known gene splicing mechanism in which exon(s) are included or excluded from the final gene transcript leading to extended or shortened mRNA variants. The exons are the coding regions of a gene and are responsible for producing proteins that are utilized in various cell types for a number of functions.Intron Retention: An event in which an intron is retained in the final transcript. In humans 2-5 % of the genes have been reported to retain introns. The gene splicing mechanism retains the non-coding (junk) portions of the gene and leads to a demornity in the protein structure and functionality.Alternative 3' splice site and 5' splice site: Alternative gene splicing includes joining of different 5' and 3' splice site. In this kind of gene splicing, two or more alternative 5' splice site compete for joining to two or more alternate 3' splice site.A gene-sized fragment of DNA is isolated from another organism. The bases of the fragment are spliced (joined) to the bases of the molecule by using a chemical called ligase.