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The end result is a polypeptide whose amino acid sequence mirrors the sequence of codons in the mRNA. The mRNA sequence is: 5'-AUGAUCUCGUAA-5'. Translation involves reading the mRNA nucleotides in groups of three; each group specifies an amino acid (or provides a stop signal indicating that translation is finished).
Apr 8, 2024 · Translation is the process by which the genetic code contained within a messenger RNA (mRNA) molecule is decoded to produce a specific sequence of amino acids in a polypeptide chain. It occurs in the cytoplasm following DNA transcription and, like transcription, has three stages: initiation, elongation, and termination.
Jul 31, 2022 · As with mRNA synthesis, protein synthesis can be divided into three phases: initiation, elongation, and termination. The process of translation is similar in prokaryotes and eukaryotes. Here we’ll explore how translation occurs in E. coli, a representative prokaryote, and specify any differences between prokaryotic and eukaryotic translation.
Step 1: transcription! Here, the DNA sequence of a gene is "rewritten" in the form of RNA. In eukaryotes like you and me, the RNA is processed (and often has a few bits snipped out of it) to make the final product, called a messenger RNA or mRNA. Step 2: translation!
- You state that AUG is the start codon and also the codon for Methionine. Do all proteins made in cel...N-terminal initiating methionine, although being the first amino acid, is not present at N-terminus of all proteins. This is because of a process t...
- where are the amino acids attached to the transfer RNA coming from? in the pictures it makes it seem...The amino acids are actually brought by the tRNA from the cytoplasm to the ribosome. These types of RNA "transfer" the amino acids to all these sites.
- Hi there I am curious - what stops a ribosome from attaching to another location that may be misread...Excellent question! Translation is quite bit more complicated that this introductory material can cover. The sequence of the mRNA around a potentia...
- Why is an actual gene that codes for a protein likely to be longer?This is because when a gene is transcribed by RNA polymerase into pre-mRNA, it contains both coding (exon) segments and non-coding (intron) segment...
- Is the tRNA made from DNA, or its a preexisting molecule?The tRNA is a modified version of the mRNA , which is in turn made with the help of DNA
- what is the open reading frame? how does that fit into all of this?An open reading frame (ORF) is a series of codons that begins with a start codon (usually AUG) and ends with a stop codon. There can be no addition...
- What happens to the mRNA after being translated? Can it be translated again?Yes it can, although it has a very short lifespan (a few hours).
- Re: the genetic code image Why are there 3 codons for stopping? Why is one not enough? Also then why...As for the start codon, I wonder if other permutations will work (like AGU or GAU for example), but I suppose there three stop codons for redundanc...
- what removes the Introns from pre-mRNAthe spliceosome
- Are there any important enzymes involved in translation? In the article it says "the ribosome also a...Well, there is one enzyme which is crucial for translation and that is "aminoacyl tRNA synthetase". This enzyme attaches an amino acid to the tRNA....
During translation, which is the second major step in gene expression, the mRNA is "read" according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins...
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The basic idea. DNA replication is semiconservative, meaning that each strand in the DNA double helix acts as a template for the synthesis of a new, complementary strand. This process takes us from one starting molecule to two "daughter" molecules, with each newly formed double helix containing one new and one old strand.
Ribosomes, Transcription, and Translation. The genetic information stored in DNA is a living archive of instructions that cells use to accomplish the functions of life. Inside each cell, catalysts ...
