TAC AAA TTT GCA ACC ACT (DNA) AUG UUU AAA CGU UGG UGA (mRNA)
RNA sequence is transcribed using the DNA sequence AGC-TAC-ACT?
The sequence of the RNA would be UCG-AUG-UGA.
Yes, mRNA is essential for DNA replication.
ACC TGA ACG TCG CTA (Original) TGG ACT TGC AGC GAT (Complentary strand)
Answer this question… ACT GACA. ACT GAC B. TGA CTG C. AGU CAG D. UGA CUG
mRNA act as a template which contain information about protein in form of codons. mRNA is messenger RNA that transfers message about protein from DNA in nucleus to cytoplasm where it is converted to protein via process called Translation.
It is the reference sequence (as opposed to a genbank sequence) for an mRNA. It has been curated by the nice people at NCBI to act as a baseline for the scientific community. See http://www.ncbi.nlm.nih.gov/projects/RefSeq/RSfaq.html for further explanation.
gat cga acc act ggc gta.
In Eukaryotes, DNA is contained within the nucleus to protect it from degradation. This means that the DNA should remain protected, as a "master copy" of the blueprints for proteins. mRNA is necessary because DNA cannot leave the nucleus, but RNA can. The use of mRNA means that the DNA can remain in the nucleus, while the RNA goes to the ribosomes for translation.
DNA does not leave the cell nucleus. Therefore, the genetic code must be transcribed by mRNA and carried to the ribosomes for translation.
When a new DNA is formed , two strands of old DNA open and act as a template for synthesis of two new strands of DNA .Sequence of bases in new strand of DNA is determined by old strand and it is based on complementarity i.e. A pairs with T and G Pairs with C .
transcription is the act of DNA being 'transcribed' into mRNA inside the nucleus. Afterwards, the head and tail of the mRNA get capped with a poly-A tail and a 5 prime cap in RNA processing, so that the mRNA doesnt get recognizede as a dangerous molecule. There, it is then shipped of out of the nucleus where the mRNA gets translated into tRNA in the ribosome to produce amino acids which will eventually be turned into proteins
Proteins are synthesized by ribosomes in the cells by mRNA which codes the message of the amino acid sequence. Proteins found in diet is not going to directly act on our cells as they undergo digestion, only amino acids or other chemicals our cell gain. DNA in the nucleus controls the protein synthesis by gene expression.
Deoxyriboneucleic acid is found in a persons cells. Each person cells will contain the exact same DNA structure as the next and each structure will depend on which sequence the four chemical bases are compiled. Unless you are an identical twin the sequence of the four chemical bases will not be the same. DNA is able to replicate it self and the difference in each sequence gives a unique structure to each human.
you would find the DNA inside the nucleus were it is stored. the function of the DNA is to tell what the cell will act like and look like. this is necessary to do because all of your cells that are put together and form how you act and look like.
The codons, which create the nucleic acids, are made of four main bases, which are Adenine (A), Guanine (G), Cytosine (C), and Thymine (T) after being transcribed from DNA into mRNA (messenger RNA). Every three letters form the nucleic acids on a codon chart. An example would be AAG-GTA-ATG-CCT-ACT as the original DNA sequence, and becomes UUC-CAU-UAC-GGA-UGA (G pairs with C, T with A, and a mRNA T is changed to U) and the nucleic acids would be determined with these letter groupings. For the previous example, the nucleic acids would be Phenylalanine(UUC)- Histidine(CAU)- Tyrosine(UAC)- Glycine(GGA)- stop(UGA), which is just simply the proteins that form the genetics that are Phenylalanine- Histidine- Tyrosine- Glycine- Stop (the stop is the end of the DNA strand).
A microarray is a laboratory tool used to detect the expression of thousands of genes at the same time. DNA microarrays are microscope slides that are printed with thousands of tiny spots in defined positions, with each spot containing a known DNA sequence or gene. Often, these slides are referred to as gene chips or DNA chips. The DNA molecules attached to each slide act as probes to detect gene expression, which is also known as the transcriptome or the set of messenger RNA (mRNA) transcripts expressed by a group of genes.
DNA acts as a template for two things: # DNA # mRNA transcripts This is possible because each nitrogenous base in one strand pairs only with one other base in the complementary strand as follows: Adenine (A) always pairs with Thymine (T) Guanine (G) always pairs with Cytosine (C) Note: in RNA, Uracil (U) takes the place of Thymine (T), but still always pairs with Adenine (A). So, if one looks at a single strand of DNA, one can reconstruct the sequence of the complementary strand from the original strand, because each base on one strand will pair with only one base on the other. Consider this single strand of DNA: DNA acts as a template because of one fact: each nitrogenous base in one strand pairs only with one other base in the complementary strand as follows: Adenine always pairs with Thymine (or Uracil in RNA) Guanine always pairs with Cytosine So, if one looks at a single strand of DNA, one can reconstruct the sequence of the complementary strand from the original strand, because each base on one strand will pair with only one base on the other. Consider this single strand of DNA: ATTGCAT Looking at the first base, we know that A always pairs with T, and that T always pairs with A for the second base, and so on. Therefore we can reconstruct the complementary strand is: TAACGTA The mRNA transcript would be: UAACGUA This fact is important in two ways. First, when a cell needs to replicate its DNA, it uses an enzyme, DNA Polymerase, to assemble complementary strands by adding nucleotides with the appropriate matching bases along the strand. The result is two identical, complete DNA molecules. Secondly, when the cell needs to build messenger RNA for protein synthesis, it uses an enzyme called RNA Polymerase to assemble the mRNA transcript by adding RNA nucleotides with the complementary matching bases from the DNA strand. The result is an mRNA transcript which will be translated into a protein whose amino acid sequence will reflect the codon sequence of the original DNA strand.
A point mutation is where a single letter is the only thing changed in the DNA sequence. Lets say your phone number (or DNA code) was 483-1839 and you mistakely told someone that your phone number was 483-1835. that one digit is enough to make that person dial the wrong number (or cause a mutation in DNA.) For example suppose your DNA sequence was ACT GCT, a point mutation would just be a change in one of those bases (or letters), so it could end up something like : ACT ACT.EX: GTA CTG CAA-----> (point mutation) -----> GTA GTG CAAA frameshift mutation is generally much more serious and will cause a change all the way down a DNA sequence, making each codon (or every group of three bases) a different sequence, not just in one point or base like a point mutation, that would only slightly change the sequence of a single codon. A frameshift mutation happens not when a DNA base is simply changed, but when a whole base is added or deleted from the sequence of DNA. For example lets suppose your DNA sequence is GTA CCT AGG. In a frameshift mutation a whole base would be added somewhere in that sequence, making it look something like this: GTAT CCT AGG. Since it is impossible though to have 4 bases in a codon, your body would automatically shift every letter down one, even to the next codon in the sequence, to make room for this new base. In the end the final product would look something like this: GTA TCC TAG (with the left over G being the first base in the next codon, and so on).EX: CAG TTC CTG GAA -----> (frameshift muation) -----> CAG TTA CCT GGAAs you can see the frameshift mutation would leave the mutated DNA vastly more different from its parent DNA (that it was replicated from), then a point mutation would, though in both cases the DNA would still be different/mutated. This is because the codons would be more considerbaly changed with the frameshift (where now the sequence in every codon in different), rather than in a point mutation (where only one of the codons would be different).Hope this helps all you HS Bio 1 people like myself out there, or anyone else studying this subject.-- K.J.S
DNA transcribes RNA in nucleus and export it to cytoplasm. RNA triplet codons code for a particular amino acid. Ribosomes bind mRNA to carry on polypeptide synthesis. rRNA forms ribosomes and tRNA can act as adapter molecule.
No. mRNA is a substrate upon which ribosomes act, not a component of ribosomes. Ribosomes are made up of proteins and ribosomal RNA (rRNA).