• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Transcription/Translation Notes Handout
Transcription/Translation Notes Handout

... The transcription process is similar to replication. -Transcription and replication both involve complex enzymes and complementary _________________. *Both processes take place in the nucleus -The two processes have different end results. * Replication copies all the ________________; transcription ...
Across 1. an organelle within the nucleus that produces ribosomes 3
Across 1. an organelle within the nucleus that produces ribosomes 3

... Across 1. an organelle within the nucleus that produces ribosomes 3. an organelle formed by the centriole 5. an organelle unique to animal cells involved in cell replication 7. a rigid structure located on the outside of plant cells 10. large membrane-bound space in the cytoplasm of plant cells 13. ...
Transcription & Translation
Transcription & Translation

... carry a specific amino acid at one end and an anticodon region that recognizes and binds mRNA at the other end. The tRNA that binds to that mRNA codon determines what amino acid is added to a protein chain. The Three RNAs (mRNA, tRNA, and rRNA) all work together to turn the information in DNA into a ...
DNA RNA Lecture Website
DNA RNA Lecture Website

... 2. There are ___ different nucleotides (since there are four different nitrogenous bases). three nucleotides in 3. It was discovered that ______________ amino acid sequence must specify each __________. This would provide for ___ 64 possible combinations of amino acids. triplet of nucleotides is cal ...
Chapter 10B: Gene Expression
Chapter 10B: Gene Expression

... a time, by ribosomes using info in mRNA: • ribosomes bind directly to mRNA, “read” codon by codon • ribosomes always start at AUG (methionine) • translation also involves tRNAs, each of which is attached to 1 of the 20 amino acids (AAs) • ribosomes match the right tRNA (via the anticodon) with the r ...
ch04-genetics
ch04-genetics

... 4. _________ A system that enables 4 nucleotides (A, T, C, G) to code for the amino acid sequences of all proteins 5. _________ A sequence of 3 DNA nucleotides that stands for 1 amino acid 6. _________ An information-containing segment of DNA that codes for the production of a molecule of RNA 7. ___ ...
Chapter 7: Microbial Genetics
Chapter 7: Microbial Genetics

... Process whereby DNA encodes for the production of amino acids and proteins. This process can be divided into two parts: 1. Transcription Before the synthesis of a protein begins, the corresponding RNA molecule is produced by RNA transcription. One strand of the DNA double helix is used as a template ...
Chapter 19 Lecture PowerPoint - McGraw Hill Higher Education
Chapter 19 Lecture PowerPoint - McGraw Hill Higher Education

... Interaction of the 70S Ribosome with RF1 • RF1 domains 2 and 3 fill the codon recognition site and the peptidyl transferase site, respectively, of the ribosome’s A site, in recognizing the UAA stop codon • The “reading head” portion of domain 2 of RF1 occupies the codon recognition site within the ...
Slide 1 - MacWilliams Biology
Slide 1 - MacWilliams Biology

... 9. The ribosome helps form a peptide bond between the first and second amino acids— methionine and phenylalanine. 10. The bond holding the first tRNA molecule to its amino acid is broken. 11. tRNA then moves into a third binding site, from which it exits the ribosome. 12. The ribosome then moves to ...
Nucleic Acids and Protein Synthesis
Nucleic Acids and Protein Synthesis

... The DNA strands separate as weak hydrogen bonds between the bases are breaking at stage 2 Free RNA nucleotides join up with exposed bases on one of the DNA Strands at stage 3. Uracil joins with Adenine, Cytosine with Guanine Weak hydrogen bonds are forming between the new base pairs at stage 4 The n ...
DNA, RNA and Protein Synthesis Webquest
DNA, RNA and Protein Synthesis Webquest

... 1. mRNA is created and copied from DNA a. worker’s pick up ingredients 2. mRNA exits through a nuclear pore, goes to cytoplasm, ribosomes b. workers read recipe and combine ingredients 3. tRNA binds to an amino acid c. boss gives recipe to messenger 4. loaded tRNA bonds to mRNA at the ribosome d. re ...
DNA to Protein - Seabreeze High School
DNA to Protein - Seabreeze High School

... Things to think About & Discuss 1. What if a mutation occurs in the DNA? Explain how could that affect the organism’s protein? 2. What if a mutation occurs in 3rd base of the codon? Will it always code for a different amino acid? Explain. ...
BIO 101: Transcription and Translation
BIO 101: Transcription and Translation

... The same genetic information is in all 100 trillion cells of any one person. Different cells use the same blueprint in different ...
25 transcription, translation
25 transcription, translation

... (amino acid binding site) tRNA-activating enzyme (aminoacyl-tRNA synthetase) anticodon ribosome rRNA ...
RNA & Protein Synthesis
RNA & Protein Synthesis

... The double helix structure explains how DNA can be copied, but it does not explain how genes work. Genes are coded DNA instructions that control the production of proteins within the cell. Genetic messages can be decoded by copying part of the nucleotide sequence from DNA into RNA. RNA contains code ...
Chapter 3
Chapter 3

... 3. Many bacteria commonly carry extrachromosomal pieces of DNA called ___________, which are able to ___________ independently of the bacterial chromosome. 4. Protein synthesis takes place at ___________. 5. The main components of cell membranes are ___________ and ___________ 6. Gram-positive cell ...
Information Flow 2
Information Flow 2

... RNA polymerase associates with the DNA at a site adjacent to the gene called the promoter. The promoter is not part of the gene. It is upstream from the gene. It is commonly rich in A and T bases: TATAAA A protein called sigma (σ) associates with the promoter and marks the site for RNA polymerase to ...
The Process of Transcription-2
The Process of Transcription-2

... • tRNAs interact with rRNA during protein synthesis • tRNAs must have amino acid attached – Enzymes: aminoacyl tRNA synthetases • 20 different enzymes, one for each aa. – Enzymes recognize shape of tRNA ...
CH 13
CH 13

... There are many different kinds of RNA: •mRNA (messenger RNA): carry information from DNA to the ribosomes to make proteins •rRNA (ribosomal RNA): part of ribosomes •tRNA (transfer RNA): brings amino acids to the ribosomes ...
Section 1.5 Name:
Section 1.5 Name:

... d. Step  4  –  RNA  transcription  ends  when  a  termination  signal  in  the  DNA  is  reached   ...
DNA AND PROTEIN SYNTHESIS
DNA AND PROTEIN SYNTHESIS

...  UAA, UAG, UGA= stop translation ...
An Overview of Protein Synthesis
An Overview of Protein Synthesis

... Proteins produced on bound ribosomes (RER) are for export out of the cell or lysosomes. Proteins produced on free ribosomes are for use inside the cell. ...
Eukaryotic Cell Organelle Matching
Eukaryotic Cell Organelle Matching

... ...
Translation Definition - Mr. Barrow's Science Center
Translation Definition - Mr. Barrow's Science Center

... The actual process of protein synthesis where the mRNA, made during transcription, is utilized along with ribosomes. ...
Biosynthesis of proteins on ribosomes GENETIC
Biosynthesis of proteins on ribosomes GENETIC

... 6. Formation of the quaternary structure ...
< 1 ... 74 75 76 77 78 79 80 81 82 ... 91 >

Ribosome



The ribosome (/ˈraɪbɵˌzoʊm/) is a large and complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation). Ribosomes link amino acids together in the order specified by messenger RNA (mRNA) molecules. Ribosomes consist of two major components: the small ribosomal subunit, which reads the RNA, and the large subunit, which joins amino acids to form a polypeptide chain. Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and a variety of proteins. The ribosomes and associated molecules are also known as the translational apparatus.The sequence of DNA encoding for a protein may be copied many times into RNA chains of a similar sequence. Ribosomes can bind to an RNA chain and use it as a template for determining the correct sequence of amino acids in a particular protein. Amino acids are selected, collected and carried to the ribosome by transfer RNA (tRNA molecules), which enter one part of the ribosome and bind to the messenger RNA chain. The attached amino acids are then linked together by another part of the ribosome. Once the protein is produced, it can then fold to produce a specific functional three-dimensional structure.A ribosome is made from complexes of RNAs and proteins and is therefore a ribonucleoprotein. Each ribosome is divided into two subunits: 1. a smaller subunit which binds to a larger subunit and the mRNA pattern, and 2. a larger subunit which binds to the tRNA, the amino acids, and the smaller subunit. When a ribosome finishes reading an mRNA molecule, these two subunits split apart. Ribosomes are ribozymes, because the catalytic peptidyl transferase activity that links amino acids together is performed by the ribosomal RNA. Ribosomes are often embedded in the intercellular membranes that make up the rough endoplasmic reticulum.Ribosomes from bacteria, archaea and eukaryotes (the three domains of life on Earth) differ in their size, sequence, structure, and the ratio of protein to RNA. The differences in structure allow some antibiotics to kill bacteria by inhibiting their ribosomes, while leaving human ribosomes unaffected. In bacteria and archaea, more than one ribosome may move along a single mRNA chain at one time, each ""reading"" its sequence and producing a corresponding protein molecule. The ribosomes in the mitochondria of eukaryotic cells functionally resemble many features of those in bacteria, reflecting the likely evolutionary origin of mitochondria.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report