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What is the sequence of the mRNA made from the gene TTACAGGTCCCA?

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The gene sequence is located on DNA. A copy is made onto MRNA. You take the exons, or important peices from the MRNA, put them together and make the sequence for the proteins.

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A RNA copy of a DNA gene <--- Gradpoint/NovaNet Messenger RNA (mRNA) is a form of RNA that codes for amino acids. During transcription a sequence of mRNA is made from a corresponding sequence of DNA. In a eukaryote, the mRNA is then processed and sent outside the nucleus to be translated by a ribosome in the cytoplasm. As for a prokaryote (which has no nucleus), the mRNA is already in the cytoplasm and just needs to be translated by a ribosome also in the prokaryote's cytoplasm.

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If a mutation happens within a gene, it could shift the reading frame affecting the mRNA strand and then the amino acid sequence thus conceiving a different protein.

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mRNA takes the genetic code to a ribosome, which is made of ribosomal RNA and proteins.

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By gene expression we mean the transcription of a gene into mRNA and its subsequent translation into protein. Gene expression is primarily controlled at the level of transcription, largely as a result of binding of proteins to specific sites on DNA.

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Since DNA contains many genes, and mRNA is just one gene, it only uncoils in that specific part where that gene is located. The transcription then can begin and mRNA is made.

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The process wherein messenger RNQ (or mRNA) is given a message is called transcription. In this process, n mRNA molecule is made (or transcribed) using DNA as the template. Essentially, the nucleotide sequence on a gene is read by an enzyme called RNA polymerase which synthesizes the mRNA molecule. Put simply, RNA polymerase scans the length of DNA until a gene is encountered. When the enzyme reaches the correct position, it begins adding complimentary nucleotides to make the mRNA molecule. This way, the entire gene is transcribed and copied on to the mRNA molecule.

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a gene is made up of a change of amino acids, an amino acid is an anti codons of tRNA that corresponds to mRNA, mRNA is transcribed from DNA in the nucleus of a cell.

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Yes, it pairs with it in mRNA (messenger RNA) synthesis. A-U and C-G. mRNA is made when a gene is expressed (protein is made)

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Say the part of the gene that is mutated does not change the amino acid sequence of the protein made through the mRNA; hydrophobic amino acid stays hydrophobic. We have many of these small nucleotide polymorphisms in our genomes and they are useful trackers of human migrations, for instance.

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A gene is a unit of hereditary information made up by a specific nucleotide sequence.

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Genes are segments of DNA. DNA is made up of polymer of nucleotides joined together. When there is an alteration in the sequence of nucleotides, gene mutation occurs.

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Yes . For a gene to be expressed it must first be transcribed. When the action of the product of a gene is needed (protein/enzyme), its gene is activated and a RNA copy is made of it. Various processing steps performed upon this RNA transcript make it into the RNA mentioned above - a messenger Rna (mRna).

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DNA and RNA (m and t) are made of nucleotides. Proteins like hemoglobin are composed of amino acids. The mRNA specifies the sequence information needed for making the hemoglobin protein. This information is a direct and temporary copy of information contained on a gene on DNA. The tRNA is a separate molecule the carries an amino acid on it. It is like a mediator. It has sequence that matches to a small part of the sequence being specified by the mRNA. When the tRNA moves into the right position on the mRNA, the amino acid detaches from the tRNA and is added to the growing protein or polypeptide chain.

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- stability of the DNA molecule (more C-G than A-T means greater stability since C-G has triple hydrogen bonds whereas A-T only has double hydrogen bonds) - where gene starts (look for promoter sequence) - what mRNA will be produced - what codons would be formed from the mRNA - what tRNA matches these codons - what amino acids would be carried by these tRNA - what protein would be made - what type of protein (membrane spanning protein for instance has sequence of hydrophobic amino acids) would be made - what allele of the gene would be expressed

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No. A gene is transcribed to pre-mRNA which can then be 'edited' or spliced in different ways to generate different mRNAs to encode different protein isforms. This is known as alternative splicing.

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There are two steps to protein synthesis: 1. Transcription - DNA unwinds, mRNA is made on the DNA template, the mRNA leaves the nucleus (through the nuclear pores) and goes to the ribosomes. 2. Translation - The mRNA moves along the ribosome where the information in the mRNA (codons) give the instructions for the sequence of amino acids in the protein that is being made. Once the amino acid sequence (protein, or "polypeptide") is complete, it detaches from the ribosome.

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Complementary DNA (cDNA) is DNA that has been copied from an mRNA through a reverse transcriptase enzyme. cDNA contains a copy of the original DNA sequence that made the mRNA - but without the introns (as these are cut out to create mRNA).

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Where does mrna go after it is made

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Recall for any DNA sequence, there are actually two sequences because DNA is a double helix composed of two strands. By convention (a thankfully logical convention) we typically record the DNA sequence of the "sense strand" from the 5' end to the 3' end. The sense strand was chosen because the sense DNA sequence is exactly the same as the mRNA sequence except that it has T's where RNA has U's. Thus if the sequence you provided is the sense strand 5'-acagtgc-3', then the mRNA sequence would be 5'-acagugc-3'. However, if what you were asking for is what mRNA sequence would be transcribed from the given DNA sequence, that would depend if you'd given me the sequence 5' to 3' or 3' to 5'. If you've given me the sequence of the antisense strand, 3' to 5' (that is, if you're asking what would happen if an RNA polymerase landed at the left of the sequence and began moving right) the mRNA sequence would be ugucacg. If you've given me the sequence of the antisense strand 5' to 3', then the answer would be gcacugu. I'm sorry if I made this more complicated for you.... I have a feeling you were looking for a simpler answer than this.

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Generally there is one mRNA transcript made from each gene. There are exceptions to this.

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is mRNA made by translating DNA

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I assume you are talking about protein synthesis? Good. Messenger RNA (mRNA) is ejected from the nucleus after it has made a copy of the base pairing sequence for that particular gene (to produce a protein) via a nuclear pore. The mRNA comes into contact with Ribosomal RNA (rRNA) in the cytoplasm of the cell. The Transfer RNA (tRNA) then brings along the correct amino acids as indicated by the sequence of the mRNA which is attached to the rRNA. The mRNA is passed between the sub units of the ribosome and the tRNA brings along the amino acids in the correct sequence until a codon is present (tells it to stop). The amino acids are then joined by a condensation reaction with peptide bonds to form a polypeptide chain and eventually a protein. Amazing stuff huh?!

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From http://www.biology.iupui.edu/biocourses/N100/2k3ch13dogma.htmlSimply stated, during transcription, one gene (DNA) is 're-written' into an RNA in the nucleus:A team of enzymes and proteins binds to the promoter, or starting region, of a gene.These enzymes and proteins unzip the DNA double helix just at the region of the gene.The enzyme RNA polymerase uses one of the DNA strands to make an RNA copy of that one gene.This copy, which contains the instructions to make 1 protein, is called an mRNA or messenger RNA.After the mRNA is made, it is trimmed down to a final size, and shipped out of the nucleus!When the mRNA gets into the cytoplasm, it is made into protein.


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