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Nucleic Acids PP
Nucleic Acids PP

... • Just like polysaccharides are long chains of… • And proteins are 1 or more long chains of ...
DNA Replication Simulation WKST
DNA Replication Simulation WKST

... Now you are ready to start adding new DNA nucleotides using the old strands. Before DNA replication can start, a primer must be added so DNA polymerase can bind. A primer is a short stretch of RNA that initiates DNA replication by allowing polymerase to bind and add nucleotides to the end of it. Pri ...
Name
Name

... Chromosome: the form DNA takes when it is ready to divide Nucloetide: The molecule that makes up DNA and RNA, composed of a sugar, phosphate group and a nitrogen base DNA Replication: Process DNA goes through to copy its genetic info before the cell divides. Helicase: The enzyme that breaks the hydr ...
A Unit 6 Videoscript
A Unit 6 Videoscript

... DNA duplicates, or replicates itself, so that, during cell division and gamete formation, the cells produced by these two processes will have the necessary genetic code. In the first step of DNA replication, the DNA molecule, which can also be compared to a zipper, unzips. The hydrogen bonds betwe ...
HHMI – The Double Helix 1. What are the chemical components of a
HHMI – The Double Helix 1. What are the chemical components of a

... DNA double helix. The sequence of strand I is indicated below. What is the sequence of strand II? Strand I -----------C-T-A-C----------Strand II -----------?-?-?-?------------a. AGCA c. TCGT ...
Date________ Block________ Constructing a DNA Helix Questions
Date________ Block________ Constructing a DNA Helix Questions

... Proteins are important because they are what your muscles and tissues are made of; they synthesize the pigments that color your skin, hair, and eyes; they digest your food; they make (and sometimes are) the hormones that regulate your growth; they defend you from infection. In short, proteins determ ...
DNA and Protein Synthesis Review WS
DNA and Protein Synthesis Review WS

... Who was responsible for determining the structure of the DNA molecule and in what year was this done? The model of DNA is known as a _____________ because it is composed of 2 _____________ chains wrapped around each other. What makes up the sides of the DNA molecule? What makes up the “steps” of a D ...
DNA: The Regulation of Life
DNA: The Regulation of Life

... 64 different codons (Can you figure this # out on your own?) ...
bio12_sm_06_2
bio12_sm_06_2

... 2. The sample of DNA will contain 32 % thymine, 18 % guanine, and 18 % cytosine. 3. DNA is a polymer composed of a nucleotide monomer unit. Each nucleotide contains a phosphate group, a deoxyribose sugar, and a nitrogenous base. The phosphate group bonds to the neighbouring nucleotide’s ribose sugar ...
DNA and Protein Synthesis Review Sheet
DNA and Protein Synthesis Review Sheet

... DNA replication means that the entire strand of DNA is copied. You end up with two double stranded DNAs that are full length ...
The DNA, Replication and Transcription Set
The DNA, Replication and Transcription Set

... in harmful, beneficial, or neutral effects to the structure and function of the organism. • Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells. • Ask questio ...
Biology\DNA, Mitosis, Meiosis
Biology\DNA, Mitosis, Meiosis

... Our traits (Ex: hair color, eye color, etc.) are determined by proteins. Proteins are made by RNA (ribonucleic acid) RNA is made from DNA. RNA is: • A single strand • Has ribose as its 5-carbon sugar • Substitutes uracil for thymine when copying DNA codes Production of RNA from DNA is called transcr ...
questions 1-21
questions 1-21

... 6. Which statement concerning nucleic acids is FALSE? (1.) DNA is a single stranded molecule. (2.) DNA forms a twisted helix. (3.) RNA contains ribose sugar. (4.) RNA may contain uracil. 7. A nucleotide would least likely contain the element (1.) carbon (2.) nitrogen (3.) phosphorus (4.) sulfur 8. W ...
Elongation of the Leading strand in DNA Replication
Elongation of the Leading strand in DNA Replication

... molecule of a second type of DNA polymerase (epsilon, ε, in eukaryotes) binds to the other template strand as the double helix opens. This molecule must synthesize discontinuous segments of polynucleotides (called Okazaki fragments). Another enzyme, DNA ligase I then stitches these together into the ...
Introduction to genome biology
Introduction to genome biology

... • Each cell contains a complete copy of an organism’s genome, or blueprint for all cellular structures and activities. • Cells are of many different types (e.g. ...
2014 DNA Replication ppt
2014 DNA Replication ppt

... Erwin Chargaff discovered that: –The percentages of guanine [G] and cytosine [C] bases are almost equal in any sample of DNA. –The percentages of adenine [A] and thymine [T] bases are almost equal in any sample of DNA. ...
bio rap – “the dna makes protein”
bio rap – “the dna makes protein”

... BIO RAP – “THE DNA MAKES PROTEIN” [chorus] The DNA, the DNA, the DNA makes protein The DNA, the DNA, the DNA makes protein DNA, the DNA, the DNA, the DNA, the DNA The DNA, the DNA makes protein DNA, the DNA, the DNA, the DNA, the DNA The DNA, the DNA makes protein The nucleus dissolves when its time ...
Genome_Layout_Jodi (Page 3) - Genome: The Secret of How Life
Genome_Layout_Jodi (Page 3) - Genome: The Secret of How Life

... If someone said that they didn’t understand how DNA is like a ladder, how would you explain it to them? If you built a three-dimensional version of the DNA ladder, how would you do it? Explain. ...
EMS Lesson 4: Ladders of Life
EMS Lesson 4: Ladders of Life

... 7. If they have made the correct matches, the finished product should resemble a ladder that is always the ...
DNA Structure - Gateway IB 2012
DNA Structure - Gateway IB 2012

...  The rings are not only made of carbon (specific ...
ppt - Dave Reed
ppt - Dave Reed

... chemical structure of a protein it is currently believed that there are 20,00030,000 different genes in human DNA ...
Chapter 12 DNA Structure and Function
Chapter 12 DNA Structure and Function

... • 4. One side is the leading strand - it follows the helicase as it unwinds. • 5. The other side is the lagging strand - its moving away from the helicase • Problem: it reaches the replication fork, but the helicase is moving in the opposite direction. It stops, and another polymerase binds farther ...
Ch08
Ch08

... 1. This is not a trivial question! Check out Fig 8-11 which shows the H-bonding between A-T and G-C base pairs. Those “Watson-Crick” H-bonds that are part of holding the two DNA strands together which along with hydrophobic stacking allows DNA to form stable double stranded structure. But consider t ...
D.N.A.
D.N.A.

... “right side up and one side runs upside down”. ...
Transcript
Transcript

... DNA replication is a process that all cells must go through prior to any type of cell division. When cells replicate their DNA, they make two identical copies of their DNA from the original copy. This process assures that the daughter cells resulting from cell division will each have a complete copy ...
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DNA replication



DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance. DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.In a cell, DNA replication begins at specific locations, or origins of replication, in the genome. Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bidirectional from the origin. A number of proteins are associated with the replication fork which helps in terms of the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new DNA by adding complementary nucleotides to the template strand.DNA replication can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to initiate DNA synthesis at known sequences in a template DNA molecule. The polymerase chain reaction (PCR), a common laboratory technique, cyclically applies such artificial synthesis to amplify a specific target DNA fragment from a pool of DNA.
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