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To identify introns and exons in a sequence, one can use bioinformatics tools that analyze the sequence for specific patterns and characteristics associated with introns and exons. These tools can identify regions with known splice sites, coding sequences, and non-coding sequences to differentiate between introns and exons. Additionally, comparing the sequence to a reference genome can help in identifying these regions accurately.
What else can I help you with?
What is the name of the remaining pieces after introns have been cut out of RNA molecules that are spliced together?
The introns are cut out in the spliceisome and the exon portions are spliced together. A poly adenine tail is added to one end and a modified guanine cap added to the other end. Then the mRNA leaves the cell nucleus and heads for the cytoplasm and a ribosome.
What is an exon?
When a gene is transcribed to for an mRNA molecule, introns are removed and exons stay to be reattached to from one linear mRNA molecule again. This final RNA sequence then gets used by a Ribosome to form a protein
What makes premature mrna and mature mrna different?
The first (primary) transcript from a protein coding gene is often called a pre-mRNA and contains both introns and exons. Pre-mRNA requires splicing (removal) of introns to produce the final mRNA molecule containing only exons
Why must introns be removed while the exons remain in the mRNA?
Introns are non-translated sections of a gene, i.e. they are not made into protein. The gene is stored in the chromosomes as DNA. When the corresponding protein is needed, the DNA is copied (transcribed) by RNA polymerase making a complementary copy of the gene made of RNA. This is then processed to remove the introns (the non-coding parts of the gene). It was long thought these introns hasdno use. However, there is evidence that they have a role in the processing of the RNA. In addition, introns allow more than one protein to be produced from a single gene. The RNA with the introns removed is now the messenger RNA (mRNA) which is transported out of the nucleus into the cytoplasm, where it is read by the ribosome, which produces the coded protein. See http://en.wikipedia.org/wiki/Intron
What permits a single gene to code for more than one polypeptide?
Alternative splicing permits a single gene to code for more than one polypeptide. In alternative splicing, certain exons of a gene may be included or excluded from the messenger RNA used to code for proteins.
Do introns and exons play any role in protein synthesis?
Exons are part of both prokaryotic and eukaryotic. Introns are rarely present in the domain bacteria (common bacteria) while introns are present in some genes in domain archaea ("ancient" bacteria). Both are considered prokaryotic. No, they are only present on tRNA and rRNA.
Is there any relation between the number of introns and exons in a gene?
For one; there was a Time when there was no such thing as an intron, all genetic material was expressed. Having said that, as Time went by, the ratio of [expressed] exons to [suppressed] introns shrank.
What is the name of the remaining pieces after introns have been cut out of RNA molecules that are spliced together?
The introns are cut out in the spliceisome and the exon portions are spliced together. A poly adenine tail is added to one end and a modified guanine cap added to the other end. Then the mRNA leaves the cell nucleus and heads for the cytoplasm and a ribosome.
Which one exons or introns is spliced out when primary RNA is processed?
Introns are spliced out during the processing of primary RNA to form mature messenger RNA (mRNA). Exons are retained in the final mRNA and are responsible for coding for proteins.
What is an exon?
When a gene is transcribed to for an mRNA molecule, introns are removed and exons stay to be reattached to from one linear mRNA molecule again. This final RNA sequence then gets used by a Ribosome to form a protein
What are RNA segments joined to one another by spliceosomes?
RNA segments joined together by spliceosomes are called exons. Spliceosomes remove introns from pre-mRNA molecules and ligate exons together to produce a mature mRNA transcript that can be translated into a protein. This process is known as RNA splicing.
What makes premature mrna and mature mrna different?
The first (primary) transcript from a protein coding gene is often called a pre-mRNA and contains both introns and exons. Pre-mRNA requires splicing (removal) of introns to produce the final mRNA molecule containing only exons
What modifications are made to mRNA before passsing out of the cell nucleus?
Simply put, a spicsosome attaches and the introns are excised and the exons are stitched together. Then a poly A tail is attached to one end and a modified guanine cap is attached to the other. Then the mRNA exists the cell.
Which type of cell does not possess introns and extrons and produces polycystronic mRNA?
Prokaryotic cells do not possess introns and exons, and they produce polycistronic mRNA. This mRNA contains multiple coding sequences for different proteins in a single transcript, allowing for the production of several proteins from one gene.
What are the 4 characteristics of genes. Which one do you think is the most important?
Genes have four main structural parts - the promoter, introns, exons and the termination site (or recognition site for Rho protein). They are all very important (since exons contain the code for creating products, these could be called more important than introns - although it is believed introns still have an important role). Genes are how you get your own physical characteristics. They are the fundamental unit of heredity. Genes are found on chromosomes made of DNA. Different genes determine different characteristics, or traits, of an organism.
Why must introns be removed while the exons remain in the mRNA?
Introns are non-translated sections of a gene, i.e. they are not made into protein. The gene is stored in the chromosomes as DNA. When the corresponding protein is needed, the DNA is copied (transcribed) by RNA polymerase making a complementary copy of the gene made of RNA. This is then processed to remove the introns (the non-coding parts of the gene). It was long thought these introns hasdno use. However, there is evidence that they have a role in the processing of the RNA. In addition, introns allow more than one protein to be produced from a single gene. The RNA with the introns removed is now the messenger RNA (mRNA) which is transported out of the nucleus into the cytoplasm, where it is read by the ribosome, which produces the coded protein. See http://en.wikipedia.org/wiki/Intron
What is the next number in this sequence 261854?
One number is not sufficient to identify a sequence.
