Two major functions of dna
[PDF File]Lab: DNA Extraction from Human Cheek Cells
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3. Describe the two major functions of DNA polymerase and relate these functions to show how cells help to ensure that DNA replication is accurate? 4. Describe how long strands of double-helical DNA fit into the nucleus of a single cheek cell. 5. Why can the mRNA strand made during transcription be thought of as a mirror image of the
[PDF File]The Genetic Code
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RNA and DNA, besides being single stranded, is that RNA has a ribose backbone instead of a deoxyribose one. Protein biosynthesis has two major steps, transcription and translation. Tran-scription is the process where a gene is read off DNA and its information is lit-erally transcribed onto a RNA by a specialized enzyme. This enzyme, called
[PDF File]NUCLEOTIDES Notes
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functions. Nucleic acids are responsible for storage and transmission of genetic information. Nucleic acids are chemically composed of polymers of nucleotides joined together by phosphodiester linkages (bonds). Nucleic acids are broadly divided into two major types; Ribonucleic acid (RNA) which is single stranded
[PDF File]Structure/function relationship in DNA-binding proteins
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DNA sequence-specificity of DNA- binding proteins ! Sequence-specific interactions ! Frequently involve DNA major groove ! Base-specific H-bond donor, acceptors, and nonpolar groups are recognized by DNA-binding proteins ! DNA structure can deviate from classic B-form helix, and therefore be specifically recognized by a protein. !
[PDF File]Nucleotides and Nucleic Acids
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at least six different structures are possible for DNA. The Watson-Crick double helix is known as B form DNA. The B form (a short segment of which is shown below) is the major form under physiological conditions. B form DNA has a rise of 3.4 Å per base pair, with each full turn requiring a total of 10.5 base pairs, and the
[PDF File]DNA and RNA Structure - Masaryk University
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Major and Minor Grooves The DNA helix contains grooves which are preferred sites for proteins and other molecules to interact with the DNA. One significant groove in which the bases are highly exposed is termed the major groove. Most of the protein interactions occur at this site. The minor groove is located on the other side of the bases.
[PDF File]DNA and RNA - University of Colorado Boulder
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DNA has four major functions: (1) it contains the blueprint for mak-ing proteins and enzymes; (2) it plays ... we do have the equivalent of DNA proofreading mechanisms that serve two purposes—helping to insure that DNA is copied ... Before discussing the major role of DNA, it is important to discuss DNA’s
[PDF File]Structure Of DNA & RNA - Jiwaji University
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The bases in two strands are paired through hydrogen bond (H-bonds) forming base pairs (bp). Adenine forms two hydrogen bonds with Thymine from opposite strand and vice-versa. Similarly, Guanine is bonded with Cytosine with three H-bonds. Based on the observation of Erwin Chargaff that for a double stranded DNA, the ratios between Adenine and Thymine; and Guanine and
[PDF File]DNA AND IT’ S STRUCTURE, FUNCTION, TYPES, …
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DNA molecules are as much as 5 cm (2 inches!) long. • The path taken by the two backbones forms a major (wider) groove (from "34 A" to the top of the arrow) and a minor (narrower) groove (the one below).
[DOCX File]Study Island - Ms. Doran's Biology Class - Home
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DNA and RNA also have different functions. DNA stores genetic information and encodes the sequences of all the cell's proteins whereas RNA is involved in the direct production of the proteins. 15.
[DOC File]Nucleic Acid Worksheet
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What are the types and major functions for each type of RNA? Define transcription and translation. Which process occurs first in order to make protein from DNA? In what direction does a polymerase move when synthesizing a strand of mRNA? What mRNA sequence is synthesized from a section of DNA that is . 3’-TTGACCT-5’?
[DOC File]Deer Valley Unified School District
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Describe two major functions of DNA polymerases. Why is it important that human chromosomes have many origins of replication? What is the central dogma? Why can the mRNA strand made during a transcription be thought of as a mirror image of the DNA strand from which it was made? Why might a cell make lots of rRNA but only one copy of DNA?
[DOC File]Chapter 5: What are the major types of organic molecules?
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two classes of nucleic acids found in cells: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) DNA carries the genetic information cells use to make proteins RNA functions in protein synthesis according to mechanisms we will discuss later in the semester
[DOCX File]Tredyffrin/Easttown School District / Overview
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2.What are two major functions that DNA polymerase performs? 1) Bonds new nucleotides to the exposed nitrogen bases; 2) detects incorrectly paired nucleotides and fixes them . Main Idea: Replication copies the genetic information. Fill in the blank or circle the …
[DOC File]Cell Biology Lecture Notes - Seton Hall University
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DNA replication Chemistry and structure of DNA Hydrogen bonds between G-C and A-T Double-helix B-DNA (Watson-Crick Model) right-handed helix Z-DNA left-handed configuration A-DNA A right-handed helix induced by dehydration of B-DNA Major and minor grooves Polarity Supercoiled DNA Topological isomers The molecules that differ only in their state ...
[DOC File]Chapter 12
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The DNA-binding domain contains two short -helical regions that bind the major groove of DNA. The inducer-binding site and the regions responsible for multimerization are located in the core. 12.11 Repressor Is a Tetramer Made of Two Dimers. Monomers form a dimer by making contacts between core domains 1 and 2.
[DOC File]Macromolecules Worksheet - Schoolwires
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1. Functions. a. DNA - stores genetic information. b. RNA - makes proteins. 2. Make-Up. a. made up of nucleotides. b. a nucleotide consists of a 5-carbon sugar group, a phosphate group, and a. nitrogenous base. 3. There are two basic kinds of nucleic acids. Ribonucleic Acid (RNA) which contains the
[DOC File]Macromolecules:
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There are two main functions of nucleic acids, the storage of genetic information (DNA) and the conversion of this information into proteins (via RNA). The monomers of …
[DOC File]WEBQUEST ANSWER SHEET - THIRTEEN
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1) Two major differences between a plant and animal cell: a) Plant cells have larger vacuoles and are rigid in shape because of the presence of cellulose in their cell wall.
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