Preview

Self Confidence

Better Essays
Open Document
Open Document
1076 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Self Confidence
According to the Central dogma of molecular biology, "DNA makes RNA makes protein." Translation is the process by which RNA makes protein.
In the cell, DNA makes messenger RNA (mRNA). mRNA travels to the ribosome which reads its sequence and makes protein coded to that sequence.
In molecular biology and genetics, translation is the third stage of protein biosynthesis (part of the overall process ofgene expression). In translation, messenger RNA (mRNA) produced by transcription is decoded by the ribosome to produce a specific amino acid chain, or polypeptide, that will later fold into an active protein. In bacteria, translation occurs in the cell's cytoplasm, where the large and small subunits of the ribosome are located, and bind to the mRNA. In eukaryotes, translation occurs across the membrane of the endoplasmic reticulum in a process called vectorial synthesis. The ribosome facilitates decoding by inducing the binding of tRNAs with complementary anticodonsequences to that of the mRNA. The tRNAs carry specific amino acids that are chained together into a polypeptide as the mRNA passes through and is "read" by the ribosome in a fashion reminiscent to that of a stock ticker and ticker tape.
In many instances, the entire ribosome/mRNA complex bind to the outer membrane of the rough endoplasmic reticulumand release the nascent protein polypeptide inside for later vesicle transport and secretion outside of the cell. Many types of transcribed RNA, such as transfer RNA, ribosomal RNA, and small nuclear RNA, do not undergo translation into proteins.
Translation proceeds in four phases: initiation, elongation, translocation and termination (all describing the growth of the amino acid chain, or polypeptide that is the product of translation). Amino acids are brought to ribosomes and assembled into proteins.
In activation, the correct amino acid is covalently bonded to the correct transfer RNA (tRNA). The amino acid is joined by its carboxyl group to the 3' OH of the

You May Also Find These Documents Helpful

  • Good Essays

    RNA: RNA is similar to DNA except that instead of deoxyribose as the sugar, it has ribose. It is single stranded, and instead of thymine, there is uracil. There are 3 forms involved in polypeptide synthesis:mRNA: Messenger RNA carries the genetic code outside the nucleus, into the cytoplasm, where it can be read by ribosomestRNA: Transfer RNA carries the amino acids to the ribosomes to link and form a polypeptide chain. tRNA are shaped like clover leaves; there is a different type for every amino acid. At the bottom of every tRNA molecule is an anti-codon that binds to the codon on the mRNA strand. That is how the amino acid is linked to the codon.…

    • 7073 Words
    • 23 Pages
    Good Essays
  • Good Essays

    During translation, Ribosomal RNA combines with proteins to form a ribosome. tRNA (transfer RNA) brings individual amino acids to the ribosome, mRNA binds the ribosome. 3 nucleotides at a time equal 1 codon or an amino acid. Therefore the resulting amino acid sequence from the previous mRNA is AUG, GGA, AAU, CAU, CGG, UGA = Methionine, Glycine, Asparagine, Hisitdine, Proline, Stop. The first codon of the sequence (AUG), is the start of the sequence. The significance of this codon is that it symbolizes where the mRNA should start copying. The last codon of the sequence (UGA) is the end of the sequence or mostly known as "Stop". This symbolizes where the mRNA should stop copying.…

    • 565 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Nt1310 Unit 1 Assignment

    • 3643 Words
    • 15 Pages

    Ribosomes – This binds to the rough endoplasmic reticulum and to the mRNA. It also enables translation of mRNA to produce proteins.…

    • 3643 Words
    • 15 Pages
    Powerful Essays
  • Satisfactory Essays

    c) The introns are removed before protein translation. Only the exons are part of the mRNA that is used to make the final functional protein. The enzyme that removes the introns is spliceosomes.…

    • 366 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Dna Synthesis Lab Report

    • 268 Words
    • 2 Pages

    TRANSLATION: Translation is the process of which RNA helps in the making of Protein, Translation is located in the Cytoplasm, and DNA is not involved in Translation, the ending result of Translation is the production Amino Acids, in Translation, tRNA and Ribosomes work together to make Proteins, Translation is when mRNA connects with tRNA but the Amino Acids information code is the 3 nucleotides bases in the mRNA code, the nucleotides that are in tRNA are Adenine, Uracil, Cytosine, Guanine, those 4 nucleotides never change, The mRNA and the tRNA connect together to make a new double helix strand.…

    • 268 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    BIO 104 Chapter 3

    • 7229 Words
    • 29 Pages

    As the proteins make their way through the Golgi, they are processed. 3. Proteins are then packaged into transport vesicles, which deliver the proteins to their final destination. 1. Transport vesicle delivers proteins from…

    • 7229 Words
    • 29 Pages
    Powerful Essays
  • Satisfactory Essays

    Exam 4 Review Biology 110

    • 1541 Words
    • 6 Pages

    The initiator tRNA binds to small ribosomal subunits. mRNA passes through, tRNAs deliver amino acids to the ribosomal binding site in the elongation, a stop codon in the mRNA moves onto the ribosomal binding site in termination, proteins called release factors bind to the ribosome, and mRNA and polypeptide are released.…

    • 1541 Words
    • 6 Pages
    Satisfactory Essays
  • Good Essays

    Nt1310 Lab 4.1

    • 666 Words
    • 3 Pages

    4.2.4 Explain that non-disjunction can lead to changes in chromosome number, illustrated by reference to Down…

    • 666 Words
    • 3 Pages
    Good Essays
  • Good Essays

    7 Note the two transcribed and translated DNA strips below. The two strips are identical except for a point mutation, where the 15th base was changed from a G to a T. Fill in the corresponding mRNA, tRNA, and letter in the blanks below for the mutated DNA strip. In the space below, explain how this point mutation changes the protein.…

    • 518 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Dna Worksheet

    • 459 Words
    • 2 Pages

    The flow of information from gene to protein is based on the triplet code. The genetic instructions for the amino acid sequence of a polypeptide chain are written in DNA and RNA as a series of three-base words called codons. The three-base codons in DNA are transcribed into complementary three-base codons in RNA, and then the RNA codons are translated into amino…

    • 459 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    The mRNA encodes the amino acid sequence of a protein. During the translation, ribosomal RNA combines with other proteins to form a ribosome which amino acids are transported to the ribosome. The combination of mRNA and tRNA converts the mRNA into the amino acid sequence of the protein.…

    • 438 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Revision Questions

    • 510 Words
    • 3 Pages

    6. Describe the steps of protein synthesis, beginning with the attachment of a messenger RNA molecule to the small subunit of a ribosome and ending generalized with the release of the polypeptide from the ribosome. Include in your answer a discussion of how the different types of RNA function in this process.…

    • 510 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Purpose: The purpose of this lab was to find the differences in hemoglobin of gorillas, horses, and humans…

    • 305 Words
    • 4 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Reversing Entries

    • 388 Words
    • 2 Pages

    to RNA transpires in the nucleus and then RNA is handled before it enters the…

    • 388 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    DNA Turns Into Polyptide

    • 276 Words
    • 2 Pages

    The process by which DNA turns into polypeptides is a complicated and long. Two main steps in changing the DNA into a polypeptide are transcription and translation, with transcription coming first. The process first starts in the nucleus of the cell. The DNA begins to unfold with the help of a helicase. During the transcription phase of the change, strands of DNA begin to unwind and the complementary mRNA is made or transcribed. The way they do this is by using the common pairs of DNA triplet bases (A-T & C-G) which are transcribed into the mRNA bases (A-U & C-G). The reason the DNA has to be transcribed is because it is too big to pass through the nucleus walls. Once the DNA has been transcribed into mRNA, the mRNA moves to the cytoplasm or…

    • 276 Words
    • 2 Pages
    Satisfactory Essays