DNA - The Double Helix
... blocks for an organism, proteins make up your skin, your hair, parts of individual cells. How you look is largely determined by the proteins that are made. The proteins that are made is determined by the sequence of DNA in the nucleus. Chromosomes are composed of genes, which is a segment of DNA tha ...
... blocks for an organism, proteins make up your skin, your hair, parts of individual cells. How you look is largely determined by the proteins that are made. The proteins that are made is determined by the sequence of DNA in the nucleus. Chromosomes are composed of genes, which is a segment of DNA tha ...
Mitosis Review Question Set These are the basic questions that you
... Where replication starts. Short stretches of nucleotide sequences. can have 100’s Faster process The replication fork helicase DNA polymerase It binds nucleotides to create a complimentary strand of new DNA replication occurs 5’ to 3’ Leading strand lead the fork division and occur continuously. Lag ...
... Where replication starts. Short stretches of nucleotide sequences. can have 100’s Faster process The replication fork helicase DNA polymerase It binds nucleotides to create a complimentary strand of new DNA replication occurs 5’ to 3’ Leading strand lead the fork division and occur continuously. Lag ...
Dephosphorylation of Plasmid DNA Buffers and Solutions EDTA (0.5
... During ligation in vitro, T4 DNA ligase will catalyze the formation of a phosphodiester bond between adjacent nucleotides only if one nucleotide carries a 5´-phosphate residue and the other carries a 3´-hydroxyl terminus. Recircularization of vector DNA can therefore be minimized by removing the 5´p ...
... During ligation in vitro, T4 DNA ligase will catalyze the formation of a phosphodiester bond between adjacent nucleotides only if one nucleotide carries a 5´-phosphate residue and the other carries a 3´-hydroxyl terminus. Recircularization of vector DNA can therefore be minimized by removing the 5´p ...
Biol-1406_Ch9Notes.ppt
... – The binary language of computers uses only two “letters” (0 and 1, or “on” and “off”) ...
... – The binary language of computers uses only two “letters” (0 and 1, or “on” and “off”) ...
CHAPTER 13, DNA STRUCTURE AND FUNCTION QUIZ
... _____31. Which of the following nucleotide bases is found only in RNA, not in DNA? a) guanine b) adenine c) thymine d) uracil e) cytosine _____32. Which of the following nucleotide bases is found only in DNA, not in RNA? a) guanine b) adenine c) thymine d) uracil e) cytosine _____33. Which is most d ...
... _____31. Which of the following nucleotide bases is found only in RNA, not in DNA? a) guanine b) adenine c) thymine d) uracil e) cytosine _____32. Which of the following nucleotide bases is found only in DNA, not in RNA? a) guanine b) adenine c) thymine d) uracil e) cytosine _____33. Which is most d ...
Key Stage 3 - DNA detectives
... Ask them to look carefully at their models - did they all build the same as yours? If not, why not? Discuss briefly that some molecules are not the same as their mirror images - these are chiral. 3. Paired activity: Working out the structure of DNA Introduce DNA as another chiral molecule. Give ...
... Ask them to look carefully at their models - did they all build the same as yours? If not, why not? Discuss briefly that some molecules are not the same as their mirror images - these are chiral. 3. Paired activity: Working out the structure of DNA Introduce DNA as another chiral molecule. Give ...
Nucleic Acid • Nucleosides consist of a nitrogenous base and a
... doesn’t code for RNA In eukaryotes, DNA commonly transcribed into RNA is stored as euchromatin o Which is lightly-packed DNA, which is easy to unfold and reference DNA not commonly needed is stored as heterochromatin o Which is more tightly packed away The entirety of an organism’s genes is called t ...
... doesn’t code for RNA In eukaryotes, DNA commonly transcribed into RNA is stored as euchromatin o Which is lightly-packed DNA, which is easy to unfold and reference DNA not commonly needed is stored as heterochromatin o Which is more tightly packed away The entirety of an organism’s genes is called t ...
Nucleic Acid • Nucleosides consist of a nitrogenous base and a
... doesn’t code for RNA In eukaryotes, DNA commonly transcribed into RNA is stored as euchromatin o Which is lightly-packed DNA, which is easy to unfold and reference DNA not commonly needed is stored as heterochromatin o Which is more tightly packed away The entirety of an organism’s genes is called t ...
... doesn’t code for RNA In eukaryotes, DNA commonly transcribed into RNA is stored as euchromatin o Which is lightly-packed DNA, which is easy to unfold and reference DNA not commonly needed is stored as heterochromatin o Which is more tightly packed away The entirety of an organism’s genes is called t ...
DNA – Deoxyribonucleic Acid
... There are two types of bases: pyrimidines (T & C) and purines (A & G). Each side has an opposite orientation. One side as a free sugar (the 3' end) the other side has a free phosphate (the 5' end). This arrangement is called: ANTI-PARALLEL How the code works? The sequence of bases forms your genetic ...
... There are two types of bases: pyrimidines (T & C) and purines (A & G). Each side has an opposite orientation. One side as a free sugar (the 3' end) the other side has a free phosphate (the 5' end). This arrangement is called: ANTI-PARALLEL How the code works? The sequence of bases forms your genetic ...
DNA - C. Shirley Science EJCHS
... There are two types of bases: pyrimidines (T & C) and purines (A & G). Each side has an opposite orientation. One side as a free sugar (the 3' end) the other side has a free phosphate (the 5' end). This arrangement is called: ANTI-PARALLEL How the code works? The sequence of bases forms your genetic ...
... There are two types of bases: pyrimidines (T & C) and purines (A & G). Each side has an opposite orientation. One side as a free sugar (the 3' end) the other side has a free phosphate (the 5' end). This arrangement is called: ANTI-PARALLEL How the code works? The sequence of bases forms your genetic ...
DNA polymerase
... •Joining (elongation): complementary nucleotides bond to each other to form new strands; each daughter DNA molecule contains an old strand and a new strand; this process is also catalyzed by DNA polymerase. •termination – replication is terminated differently in prokaryotes and eukaryotes Ends in pr ...
... •Joining (elongation): complementary nucleotides bond to each other to form new strands; each daughter DNA molecule contains an old strand and a new strand; this process is also catalyzed by DNA polymerase. •termination – replication is terminated differently in prokaryotes and eukaryotes Ends in pr ...
TAKS Objective 2: The student knows the structures and functions of
... Unzipping of DNA Strand DNA strand unzips with an enzyme creating two parent strands Draw and label the following on the zipper: Sugars and Phosphates ...
... Unzipping of DNA Strand DNA strand unzips with an enzyme creating two parent strands Draw and label the following on the zipper: Sugars and Phosphates ...
Biology 20 DNA Replication What do the initials DNA stand for
... What type of molecule is the primer? Synthesis of the new DNA strands: Once the RNA primers are in place, DNA polymerase can go to work. DNA polymerase catalyses the synthesis of the new strands: Direction of synthesis: Why? Leading strand: A different DNA polymerase will come and convert the RNA pr ...
... What type of molecule is the primer? Synthesis of the new DNA strands: Once the RNA primers are in place, DNA polymerase can go to work. DNA polymerase catalyses the synthesis of the new strands: Direction of synthesis: Why? Leading strand: A different DNA polymerase will come and convert the RNA pr ...
DNA Barcoding
... Classical taxonomy is difficult for non-experts to understand Leaves alternate proximally, opposite and ultimately ...
... Classical taxonomy is difficult for non-experts to understand Leaves alternate proximally, opposite and ultimately ...
Assignment1 (50points)
... Assignment1 (50points) The goals of this exercise: * To assess the significance of the similarity between sequences (alignment, P ...
... Assignment1 (50points) The goals of this exercise: * To assess the significance of the similarity between sequences (alignment, P ...
Slide 1
... Resident Cells of the Bone Marrow and Thymus Play An Important Role in Lymphocyte Development •Stromal cells of both the bone marrow and thymus play an important role in development of lymphocytes •Other cell types are also present (epithelial cells/dendritic cells/macrophage) •Secrete cytokines to ...
... Resident Cells of the Bone Marrow and Thymus Play An Important Role in Lymphocyte Development •Stromal cells of both the bone marrow and thymus play an important role in development of lymphocytes •Other cell types are also present (epithelial cells/dendritic cells/macrophage) •Secrete cytokines to ...
dna model - Pitt
... Your DNA model represents only a short portion of DNA in a chromosome, which is usually composed, of thousands of nucleotides. Although your model is only a short portion, its replication is the same as that of an entire chromosome during mitosis and meiosis. 1. Find another group to work with. 2. “ ...
... Your DNA model represents only a short portion of DNA in a chromosome, which is usually composed, of thousands of nucleotides. Although your model is only a short portion, its replication is the same as that of an entire chromosome during mitosis and meiosis. 1. Find another group to work with. 2. “ ...
Chapter 13 - DNA
... interact with a group of proteins called histones. • The DNA molecules wrap around histones and become super coiled. • This allows the DNA to be very tightly and efficiently packaged, each molecule forming a structure known as a chromosome. ...
... interact with a group of proteins called histones. • The DNA molecules wrap around histones and become super coiled. • This allows the DNA to be very tightly and efficiently packaged, each molecule forming a structure known as a chromosome. ...
Microbiology Lab Manual
... exclusively with only one other base; adenine with thymine, and cytosine with quanine. The monomer (individual unit) of a nucleic acid is called a nucleotide; this is composed of a phosphate, sugar and one base. The nucleotides are referred to by the base – A, G, T, or C. DNA must accomplish two ver ...
... exclusively with only one other base; adenine with thymine, and cytosine with quanine. The monomer (individual unit) of a nucleic acid is called a nucleotide; this is composed of a phosphate, sugar and one base. The nucleotides are referred to by the base – A, G, T, or C. DNA must accomplish two ver ...
BIOL212aluIntronLabSpr2012
... test tube (in vitro) starting from only a trace amount. This template can be any form of double-stranded DNA such as genomic DNA. A researcher can take trace amounts of genomic DNA from a drop of blood, a single hair follicle, or a cheek cell and make enough to study. Prior to PCR, this would have b ...
... test tube (in vitro) starting from only a trace amount. This template can be any form of double-stranded DNA such as genomic DNA. A researcher can take trace amounts of genomic DNA from a drop of blood, a single hair follicle, or a cheek cell and make enough to study. Prior to PCR, this would have b ...
Document
... Chromosome jumping is used to bypass regions difficult to clone, such as those containing repetitive DNA, that cannot be easily mapped by chromosome walking, and is useful in moving along a chromosome rapidly in search of a particular gene. In chromosome jumping, the DNA of interest is identified, c ...
... Chromosome jumping is used to bypass regions difficult to clone, such as those containing repetitive DNA, that cannot be easily mapped by chromosome walking, and is useful in moving along a chromosome rapidly in search of a particular gene. In chromosome jumping, the DNA of interest is identified, c ...
Document
... a timer so that they are on during the day and turn off at night, mimicking the conditions in the field. ...
... a timer so that they are on during the day and turn off at night, mimicking the conditions in the field. ...
DNA - The Double Helix
... referred to as the gene for baldness or the gene for blue eyes. Meanwhile, DNA is the chemical that genes and chromosomes are made of. DNA is called a nucleic acid because it was first found in the nucleus. We now know that DNA is also found in organelles, the mitochondria and chloroplasts, though i ...
... referred to as the gene for baldness or the gene for blue eyes. Meanwhile, DNA is the chemical that genes and chromosomes are made of. DNA is called a nucleic acid because it was first found in the nucleus. We now know that DNA is also found in organelles, the mitochondria and chloroplasts, though i ...
DNA Cutout Model Activity
... 3. Construct a complementary strand of DNA. This complementary strand must have a base sequence that "pairs" with the already completed strand. For example, adenine must be paired with thymine. 4. Once the two strands have been assembled, use tape to connect them together. ...
... 3. Construct a complementary strand of DNA. This complementary strand must have a base sequence that "pairs" with the already completed strand. For example, adenine must be paired with thymine. 4. Once the two strands have been assembled, use tape to connect them together. ...
Homologous recombination
Homologous recombination is a type of genetic recombination in which nucleotide sequences are exchanged between two similar or identical molecules of DNA. It is most widely used by cells to accurately repair harmful breaks that occur on both strands of DNA, known as double-strand breaks. Homologous recombination also produces new combinations of DNA sequences during meiosis, the process by which eukaryotes make gamete cells, like sperm and egg cells in animals. These new combinations of DNA represent genetic variation in offspring, which in turn enables populations to adapt during the course of evolution. Homologous recombination is also used in horizontal gene transfer to exchange genetic material between different strains and species of bacteria and viruses.Although homologous recombination varies widely among different organisms and cell types, most forms involve the same basic steps. After a double-strand break occurs, sections of DNA around the 5' ends of the break are cut away in a process called resection. In the strand invasion step that follows, an overhanging 3' end of the broken DNA molecule then ""invades"" a similar or identical DNA molecule that is not broken. After strand invasion, the further sequence of events may follow either of two main pathways discussed below (see Models); the DSBR (double-strand break repair) pathway or the SDSA (synthesis-dependent strand annealing) pathway. Homologous recombination that occurs during DNA repair tends to result in non-crossover products, in effect restoring the damaged DNA molecule as it existed before the double-strand break.Homologous recombination is conserved across all three domains of life as well as viruses, suggesting that it is a nearly universal biological mechanism. The discovery of genes for homologous recombination in protists—a diverse group of eukaryotic microorganisms—has been interpreted as evidence that meiosis emerged early in the evolution of eukaryotes. Since their dysfunction has been strongly associated with increased susceptibility to several types of cancer, the proteins that facilitate homologous recombination are topics of active research. Homologous recombination is also used in gene targeting, a technique for introducing genetic changes into target organisms. For their development of this technique, Mario Capecchi, Martin Evans and Oliver Smithies were awarded the 2007 Nobel Prize for Physiology or Medicine.