Protein Synthesis Notes If DNA’s shape is altered it can’t function properly. RNA is more flexible so changing the shape changes the function‚ which is wanted. Any shape of RNA can become another. Three shapes/functions of RNA: -mRNA: messenger (linear_____) -rRNA: ribosomal (large and like a globe) More stable than mRNA. -tRNA: transfer (shaped like t) If you flatten this it becomes mRNA. Hydrogen Bonds ………………………………. Protein Synthesis Overview- Two Processes: Transcription- synthesis of
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Chapter 1 Answers QUICK-CHECK questions 1 What are the special characteristics of the light produced by a synchrotron? In a synchrotron‚ electrons are accelerated to very high speeds (almost the speed of light). Light is created when the direction of movement of these electrons is changed (deflected) using magnetic fields. A characteristic of this light is that it is extremely bright. 2 a Explain why ice is less dense than water. Ice is less dense than liquid water because‚ as water solidifies
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Describe the operon hypothesis and how it explains the control of the messenger RNA production and the regulation of protein synthesis in bacterial cells. The operon is a group of genes coding for proteins with related functions and they are arranged in units. The operon is made up of the promoter‚ structural genes and the operator. Transcription depends on the regulator‚ it may be located anywhere on the bacterial chromosome. The regulator codes for the repressor‚ which binds to the operator
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form an intermediary molecule termed ribonucleic acid (RNA/messenger RNA). This formation is synthesised in the same way as DNA replication. However this process occurs only on one DNA strand called template strand. Thus the mRNA is only a single strand with 4 bases; adenine (A)‚ guanine (G)‚ cytosine (C) and uracil (U). The base-pairing rules are‚ DNA mRNA G C C G T A A U This will be synthesised through enzyme RNA polymerase and happens in the nucleus of the cell.
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Name: Cora Wilke April 19‚ 2015 Laboratory 7: Building models of Biological MacromoleculesQuestions: 1. Which functional groups are involved in buiding a covalent bond between these amino acids? Amine and Carboxylic acid = Amide 2. When the covalent bond is built between alanine and glycine‚ which functional group will alanine use for peptide bond? Carboxylic Acid 3. When the covalent bond is built between alanine and glycine‚ which functional group will glycine use for peptide bond? Amine
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Are You a Good or Bad Student? Being a good student is what everyone wants to believe they are. But in reality we all know that there are bad students. I‚ myself would like to believe I am a good student but when I looked over the facts it seems that I am not a bad or a good student. The first and foremost important quality of a good student is‚ of course‚ hard working. We can’t have a good result in academic success without training and effort. The next quality is active in community. A good student
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molecule of polynucleotide chains twined/twisted together into a double helix structure. This molecule is the one that forms the genetic material responsible for transfer hereditary genetic information from one cell to another during cell division. RNA is a single-stranded molecule that contains polynucleotide chain used for the transfer of genetic information especially in bacteria cells (Freifelder‚ 2002). DNA replication process DNA replication is a process by which two DNA molecules are formed
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into individual strands‚ these bonds are broken‚ and you now have two strands with complimentary bases. RNA can then be created by using these individual bases‚ which is how DNA gets its message out of the nucleus (since it’s too large in size to fit through the pores in the nuclear envelope). Nucleotides are organic molecules that serve as the monomers‚ or subunits of nucleic acids like DNA and RNA. The building blocks of nucleic acids‚ nucleotides are composed of a nitrogenous base‚ a five-carbon
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examine DNA‚ but they had to study RNA as well. The dispute‚ however‚ with DNA is that it actually is an elaborate and intricate code where these codes conceal its instructions. In 1954‚ a physicist named George Gamow‚ organized a team together called the‚ RNA tie club. In this club‚ the members (such as Crick and Watson) tried to figure out the whole protein process in DNA. They wanted to understand why with sixty-four different triplets (3 letters of a messenger RNA string that’s involved in transporting
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the single strands to make two new DNA. Each DNA will have an old strand and a new strand. RNAwhich is a nucleic acid‚ a nucleotidediffers from DNA in three ways: 1. sugar is ribose; 2. there is a single strand of nucleotides‚ not two; 3. and uracil instead of thymine. There are three types of RNA: 1. mRNAmessengertakes the message from DNA to the ribosome; 2. rRNAribosomalthe ribosomes are made of RNA; 3. tRNAtransferbrings amino acids to the mRNA‚ about 80 nucleotides long. There are two
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