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DNA/RNA Writing Prompt
DNA/RNA Writing Prompt

... animals (an animal with foreign DNA inserted into its DNA sequence). You and one other student have been hired to reproduce cells (in a Petri dish) that will be genetically altered. The Problem One group of cells is no longer reproducing and replicating. You think a mutation has occurred that has ma ...
Know your molecules #2
Know your molecules #2

... and cut DNA into fragments with “sticky ends” ...
A diet rich in `nucleotides` would include foods
A diet rich in `nucleotides` would include foods

... computer, likewise, DNA, contains a set of instructions for the assembly of parts, namely proteins, within a cell. You can also think of DNA as like a written language. For example, both b-o-y-s and y-o-b-s contain the same four letters, but convey different meanings based on their sequence alone. W ...
What does DNA look like
What does DNA look like

... Chargaff’s data helped to show that A always pairs with T and G always pairs with C on the DNA steps. (Remember: I like to eat AT Golden Corral.) FIGURE 4 page 146 Making copies of DNA The base pairs allow the cell to copy or replicate the DNA. Bases are complementary (A only pairs with T, C only pa ...
Part 1 – Examining DNA Replication
Part 1 – Examining DNA Replication

... Why must a cell replicate its DNA? ...
Exam practice answers 8
Exam practice answers 8

... After one generation on the normal nitrogen there is no DNA as heavy as the original DNA grown on heavy nitrogen. All the DNA after one generation is lighter than the original. All the DNA after one generation is an intermediate weight, which shows that there is one strand containing heavy nitrogen ...
PDF
PDF

... add, the order to add them in, and how to mix them together, a gene tells the cell which amino acids should be strung together in what order to make the protein. The gene can also include directions for when to make the protein and how much to make. ...
Genetics
Genetics

... In eukaryotes & prokaryotes it is DNA, in viruses it can be either DNA or RNA. What do DNA & RNA stand for? DNA: deoxyribonucleic acid / RNA: ribonucleic acid. How is DNA organized to serve as the genetic material? DNA, although single-stranded in a few viruses, is usually a double-stranded molecule ...
NAME CH11 In class assignment Due 2/18/14 Across 1. Initials of
NAME CH11 In class assignment Due 2/18/14 Across 1. Initials of

... 3. Separates DNA into fragments by using an electrical current through a gel- ELECTROPHORESIS 4. Circular DNA commonly inserted into bacteria to allow for multiplication- PLASMID 6. Number of loci that the FBI needs from a suspect's DNA- THIRTEEN 10. Organism that contains DNA from a different speci ...
Topic 12 DNA - Ms. Mogck`s Classroom
Topic 12 DNA - Ms. Mogck`s Classroom

... • composed of chemical units called nucleotides ...
Mitosis and DNA worksheet
Mitosis and DNA worksheet

... Q. transformation R. Watson ...
GENETICS 603 Outline and Key Topics for Lecture 1 DNA
GENETICS 603 Outline and Key Topics for Lecture 1 DNA

... held together by Hydrogen bonds between the base pairs A and T, and G and C. The base pairs are in the center of the molecule like the steps of a spiral staircase, with the phosphate-sugar (deoxyribose) backbones of the two strands forming the frame. 1957 Meselson and Stahl used non-radioactive isot ...
Unit 5- Molecular Biology
Unit 5- Molecular Biology

... a. Describe the basic structure and function of DNA, mRNA, tRNA, amino acids, polypeptides, and proteins (e.g., replication, transcription, and translation) b. Describe the experiments of major scientists in determining both the structure of DNA and the central dogma c. Use mRNA codon charts to dete ...
State what is meant by the topological problem and explain how
State what is meant by the topological problem and explain how

... 10. List the DNA polymerases involved in DNA replication in Escherichia coli and in eukaryotes, and summarize the function of each enzyme. 11. Explain why the ends of a chromosomal DNA molecule could become shortened after repeated rounds of DNA replication, and show how telomerase prevents this fro ...
Lecture 1a
Lecture 1a

... absorbance at these λ’s can be used to monitor state of DNA. ...
Chapter 16 and 17 Test Review
Chapter 16 and 17 Test Review

... 10. Describe the formation of leading and lagging strands of a replicating DNA molecule. What allows for the speed at which eukaryotes can replicate their DNA? 11. What are telomeres? Telomerase? What affect do they have on the DNA strands? 12. Compare the major differences in Eukaryotic and Prokary ...
Chapter 16 Reading Questions What were the 2 candidates for the
Chapter 16 Reading Questions What were the 2 candidates for the

... 7. Label each of the following on the picture: purines, pyrimidines, deoxyribose, phosphate, nitrogen base, nucleotide, hydrogen bond, adenine, thymine, guanine, cytosine. ...
DNA Test Study Guide
DNA Test Study Guide

... 13. Name the two enzymes used during replication and state their functions: ____________________________14. Explain why YOUR cells depend on DNA replication. 15. Explain what a mutagen is. ...
REVIEW OF MOLECULAR GENETICS - Pascack Valley Regional
REVIEW OF MOLECULAR GENETICS - Pascack Valley Regional

... fragments from an organism cloned into a vector Ideally contains at least one copy of every DNA sequence. Easily maintained in the laboratory Can be manipulated in various ways to facilitate the isolation of a DNA fragment of interest to a scientist. Numerous types of libraries exist for various ...
SBI3U - misshoughton.net
SBI3U - misshoughton.net

... o A sequence of 3 bases (called a codon) codes for an amino acid e.g. AAA codes for phenylalanine AGT codes for serine  A gene is composed of a specific sequence of nucleotides (bases) that codes for a specific amino acid sequence  specific protein  A chromosome is composed of hundreds to thousan ...
What is some basic information about DNA?
What is some basic information about DNA?

... Nucleotides can be thought of as building blocks. These building blocks can be arranged in sequences. The human genome contains about 3 billion of these building blocks. Some sequences of the building blocks encode genes. Some sequences are related to the regulation of gene expression. Scientists kn ...
name period ______ date
name period ______ date

... 3. What is the name of the enzyme that breaks the nitrogen bases apart to get them ready for replication? 4. What is the name given to the point where replication starts on a DNA molecule? 5. How does the replicated daughter molecule of DNA compare to the parent molecule of DNA? 6. What would the co ...
Study Guide 2016-17 DNA
Study Guide 2016-17 DNA

... 4) Name the three parts of a nucleotide and label them on a drawing of a DNA subunit below: Draw a single RNA subunit. Make sure to label the following: one nucleotide, nitrogenous base, sugar, phosphate group, covalent bonds, and hydrogen bonds. ...
DNA Discovery - Biology Junction
DNA Discovery - Biology Junction

HOW TO EXTRACT DNA FROM PLANT CELLS?
HOW TO EXTRACT DNA FROM PLANT CELLS?

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DNA repair



DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day. Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell's ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, the DNA repair process is constantly active as it responds to damage in the DNA structure. When normal repair processes fail, and when cellular apoptosis does not occur, irreparable DNA damage may occur, including double-strand breaks and DNA crosslinkages (interstrand crosslinks or ICLs).The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states: an irreversible state of dormancy, known as senescence cell suicide, also known as apoptosis or programmed cell death unregulated cell division, which can lead to the formation of a tumor that is cancerousThe DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
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