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because without it, ribosome (the proteosynthetic apparatus) would not recognize mRNA produced from this gene
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Hi can anyone help me to find the answer for this question.i am doing an exam and i need some help.. thanks which are the 3 stop codons and the start codon for protein translation?
AUG - that is the start codonStop codons are UAG, UAA UGAGood luck!
How many nucleotide bases does it take to specify one amino acid?
i think nine bases are needed for three amino acids because i think it takes three bases to make one amino acid
How does DNA make a copy of itself in order to travel outside to make protein?
DNA is double stranded, in the shape we know as the "double helix." One strand of DNA is the coding strand, while the other is called the complementary strand. The coding strand is what has the protein codes, the complementary strand just bonds to that strand. DNA is also located inside the nucleus, which is protected by a nuclear membrane. This nuclear membrane is porus, but the double helix is too big to fit through these pores. So, the DNA has to be copied into mRNA (messenger ribonucleic acid.) Now, DNA is made up of nucleotides, all of which are either Adenine, Thymine, Guanine, and Cytosine; or just A, T, G, and C. A and T always pair together in the double helix, and G and C always pair together. But, the mRNA has ribonucleotides. There are still A, G, and C; but instead of a T bonding to an A, a Uracil, or U, will bond to all the A nucleotides. Okay, confusing basics, but heres the fun part. The DNA molecule "unzips," or the two strands pull apart when its time to make a protein. Then, a molecule called an mRNA polymerase will attach to the coding strand of the DNA and start "reading" it. Once it reaches the sequence "TAC" (remember the little parts that make up the DNA strand,) it will start to attach the ribonucleotides. This "TAC" is know as a start codon, because it tells the mRNA polymerase to start. Now, the mRNA polymerase will bond "AUG" to the "TAC". Then mRNA will continue to bond it's ribonucleotides to the corresponding nucleotides of the coding strand of DNA, until it reaches a "stop" codon. This stop codon is either ATT, ATC, or ACT on the DNA; which becomes UAA, UAG, or UGA on the mRNA. This is when the mRNA stops pairing ribonucleotides to the DNA nucleotides, because the code for the protein is complete. Every set of 3 nucleotides in between the start and stop codons are called a codon, and they code for one specific amino acid that will make up the protein. Now that the mRNA strand has been made, it is sent out of the nucleus because it is single-stranded, and can fit through the pores. This process of making the mRNA is called Transcripiton. But how can the protein be made? As soon as the mRNA strand exits the nucleus, a ribosome, or rRNA molecule, bonds to it. This ribosome "reads" the mRNA, and begins to attach "anti-codons" to the mRNA codons (remember a codon is 3 ribonucleotides that code for an amino acid.) The anti-codons and the amino acids come in a "package" called a tRNA, or transfer RNA, molecule. This consists of the anti-codon that will pair up to the mRNA codon, and an attached amino acid that is specific to the mRNA codon. For example, the start codon AUG will pair to the anti-codon UAC, and AUG codes for the amino acid methionine; so the tRNA molecule will have UAC at the base, and methionine attached at the top. The ribosome will do this to each codon within the strand, so each codon has an anti-codon and amino acid attached. But, ribosomes can only fit 3 codons inside them at any time, so it has to move down the mRNA 3 codons at a time. As a codon exits the ribosome after being attached to it's tRNA molecule, the anti-codon part of the tRNA breaks off and the amino acid attaches to the other amino acids using a peptide bond. So the ribosome leaves behind a string of amino acids bonded together using peptide bonds. To find out which codons on the mRNA code for which amino acids, you need to use an "amino acid wheel," which is a wheel that is read by looking at the innermost circle and finding the ribonucleotide that the codon begins with, then looking in that section to find the second ribonucleotide in the codon, then looking in that small section of the outermost circle to find the last ribonucleotide of the codon, which will then show you the protein. This chart is attached in the image below. Anyways, once the ribosome reaches a stop codon on the mRNA, it stops attaching the tRNA molecules, and the result is all the amino acids that correspond to the codons, bonded together to create the finished protein! This process of creating the protein is called Translation, so the entire process from DNA to protein is called Transcription and Translation.
What is the gene expression?
Gene expression is the process by which inheritable information from a gene, such as the DNA sequence, is made into a functional gene product, such as protein or RNA.
Is it possible for mutations to go unnoticed in mRNA?
Yes it is. There are more triplet codons than there are [biologically active] amino acids that need to be represented in the Cell, so that there is some duplication of codon/amino acid 'alignment'. This occurs only in the third base position of the triplet codon - the 'wobble base' position - so if a mutation occurred in the wobble (third) position and the codon was one of the few that was not alone in its amino acid specificity this mutation would go unnoticed.
Hi can anyone help me to find the answer for this question.i am doing an exam and i need some help.. thanks which are the 3 stop codons and the start codon for protein translation?
AUG - that is the start codonStop codons are UAG, UAA UGAGood luck!
How do both the codon and the anticodon work together?
A codon is found on the mesenger RNA (mRNA) the anti codon is the exact opposite of a codon. so lets say your codon was G C A your anticodon would be C G U The codon and anti codon work together to help make strands of protein The codon is kind of like the code for what protein you need. transfer RNA (tRNA) collects free RNA nucleotides and brings them to the Ribosome to create an anti codon which brings a certain protein to the ribosome. Do with that information what you will.
Why do you need gene therapy?
gene therapy is when a faulty gene is repaired or replaced
What would be the first three amino acids in the protein formed from this gene uagcgagg?
Each amino acid is coded for by a 3-base sequence known as a codon. Therefore you would need 9 bases to code for 3 amino acids.The sequence UAG-CGA-GG would not add three amino acids to a protein.For the sequence UAG-CGA-GG:UAG is a STOP codon - translation would cease at this point and no further amino acids would be added.CGA codes for Arginine.GG does not code for an amino acid - it would need one more base to be a codon. GGU, GGA, GGG and GGC all code for Glycine.
Whats does it mean when you need a jump every time to start your car?
Typically when you need to jump start your car every time in order to start it, there is a problem with the battery. It could be that the alternator is not working and is not charging the battery, or it could be that the battery is not holding a charge.
During translation the type of amino acid that is added to the growing polypeptide depends on what?
D. codon on the mRNA and the anticodon on the tRNA to which the amino acid is attached. __________ On my packet it says answer C. Codon on the mRNA and the anticodon on the tRNA but it's all the same thing XD
What year did the world population start to suddenly increase?
Need more information
How many nucleotide bases does it take to specify one amino acid?
i think nine bases are needed for three amino acids because i think it takes three bases to make one amino acid
Name a codon for the amino acid arginine?
arginine - is an amino acid that plays a role in cell division, healing of wounds, removing ammonia from the body, improving immunity to illness, and hormone secretion. Arginine is used by the body to make nitric oxide, condon -three bases in a DNA or RNA sequence which specify a single amino acid.
How do you start a mobile car detailing business?
all u have to do is get every thing that you need
Do you need the berserk gene to catch mewtwo in crystal?
No you do not need it.
In tRNA why does the agc anticodon need to pair with a specific mRNA codon and what is the mRNA codon it pairs with?
AGC needs to be paired up with UCG (which is the specific mRNA codon) in order to transfer message from mRNA to polypeptide. In addition it is a part of process in trancription (for elongation). **Hopefully I have answered this question correctly..if not, please correct it..thanks!
