Chapter 17_part 2
... Replication of DNA 4. Primers/Primases Primers are short—4 to 15 nucleotides long—RNA oligonucloetides synthesized from ribonucleoside triphosphates. They are needed to initiate the primasecatalyzed synthesis of both daughter strands. 5. DNA Polymerase Once the two strands are separated at the repl ...
... Replication of DNA 4. Primers/Primases Primers are short—4 to 15 nucleotides long—RNA oligonucloetides synthesized from ribonucleoside triphosphates. They are needed to initiate the primasecatalyzed synthesis of both daughter strands. 5. DNA Polymerase Once the two strands are separated at the repl ...
Matko Chapter 10 Test Key
... translation____ 6. The process of converting the genetic code in RNA into the amino acid sequence that makes up a protein. tRNA_______ 7. A type of RNA that carries amino acids from the cytoplasm to the ribosomes. promoter_____ 8. A nucleotide sequence that acts as a flag to signal the start of a ge ...
... translation____ 6. The process of converting the genetic code in RNA into the amino acid sequence that makes up a protein. tRNA_______ 7. A type of RNA that carries amino acids from the cytoplasm to the ribosomes. promoter_____ 8. A nucleotide sequence that acts as a flag to signal the start of a ge ...
DISCOVERY OF DNA
... 3. Hershey’s and Chase’s experiment led to the conclusion that a. protein is the hereditary molecule in viruses. b. DNA is responsible for transformation in bacteria. c. hereditary material can pass from cell to cell. d. DNA is the hereditary molecule in viruses. 4. Hershey and Chase used what organ ...
... 3. Hershey’s and Chase’s experiment led to the conclusion that a. protein is the hereditary molecule in viruses. b. DNA is responsible for transformation in bacteria. c. hereditary material can pass from cell to cell. d. DNA is the hereditary molecule in viruses. 4. Hershey and Chase used what organ ...
DNA - The Double Helix
... particular protein which in turn codes for a trait. Hence you hear it commonly 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 th ...
... particular protein which in turn codes for a trait. Hence you hear it commonly 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 th ...
DNA and RNA - Home - Deer Creek High School
... • Hydrogen bonds hold base pairs together • Nobel Prize 1958 ...
... • Hydrogen bonds hold base pairs together • Nobel Prize 1958 ...
DNA, Protein Synthesis, Recombinant DNA DNA RNA
... • Bonding of adjacent nucleotides - covalent bonds form between sugar (deoxyribose) and phosphate molecules b) Why does DNA replication occur before cell division? (1 mark) Both new cells require a copy of DNA to carry out normal cellular metabolism Give the location of the following processes in th ...
... • Bonding of adjacent nucleotides - covalent bonds form between sugar (deoxyribose) and phosphate molecules b) Why does DNA replication occur before cell division? (1 mark) Both new cells require a copy of DNA to carry out normal cellular metabolism Give the location of the following processes in th ...
CfE Higher Biology
... • Because DNA polymerase can only add nucleotides from the 3’ end that leaves the 5’ end exposed. • The enzyme LIGASE is able to add nucleotides in this direction. • This strand is called the lagging strand and its formation known as discontinuous. • After both strands have been joined by their comp ...
... • Because DNA polymerase can only add nucleotides from the 3’ end that leaves the 5’ end exposed. • The enzyme LIGASE is able to add nucleotides in this direction. • This strand is called the lagging strand and its formation known as discontinuous. • After both strands have been joined by their comp ...
DNA Structure Notes PPT
... made of two chains of sugar and phosphate held together by nitrogenous bases. • Watson and Crick also proposed that DNA is shaped like a long zipper that is twisted into a coil like a spring. ...
... made of two chains of sugar and phosphate held together by nitrogenous bases. • Watson and Crick also proposed that DNA is shaped like a long zipper that is twisted into a coil like a spring. ...
PDF file - the Houpt Lab
... Phage viruses are composed of DNA and protein. Is the genetic material in the protein, or in the DNA? In other words, does the phage inject the bacteria with protein or DNA? Use radioactive isotopes to label protein or label DNA. Sulfur is an element only in protein: so use 35S as label. Phosophorus ...
... Phage viruses are composed of DNA and protein. Is the genetic material in the protein, or in the DNA? In other words, does the phage inject the bacteria with protein or DNA? Use radioactive isotopes to label protein or label DNA. Sulfur is an element only in protein: so use 35S as label. Phosophorus ...
Ch. 12.2: Replication of DNA
... Replication of DNA • Before a cell can divide by mitosis or meiosis, it must first make a copy of its chromosomes. • The DNA in the chromosomes is copied in a process called DNA replication. • Without DNA replication, new cells would have only half the DNA of their parents. • DNA is copied during in ...
... Replication of DNA • Before a cell can divide by mitosis or meiosis, it must first make a copy of its chromosomes. • The DNA in the chromosomes is copied in a process called DNA replication. • Without DNA replication, new cells would have only half the DNA of their parents. • DNA is copied during in ...
7 DNA
... nucleus in the form of chromosomes. • Chromosomes are DNA wound tightly around proteins called histones. ...
... nucleus in the form of chromosomes. • Chromosomes are DNA wound tightly around proteins called histones. ...
Recombinant DNA (DNA Cloning)
... What is DNA cloning? • When DNA is extracted from an organism, all its genes are obtained • In gene (DNA) cloning a particular gene is copied (cloned) ...
... What is DNA cloning? • When DNA is extracted from an organism, all its genes are obtained • In gene (DNA) cloning a particular gene is copied (cloned) ...
Chapter 12-1: DNA - SandersBiologyStuff
... The process of copying DNA is called ____________________. Because DNA is double stranded, each strand can be used as a ___________. to make the other strand through the process of _____ __________. Because of this, the two strands are called _________________ (think about angles in Geometry). ...
... The process of copying DNA is called ____________________. Because DNA is double stranded, each strand can be used as a ___________. to make the other strand through the process of _____ __________. Because of this, the two strands are called _________________ (think about angles in Geometry). ...
Chapter 12 DNA & RNA
... information into the bacterium. • Those genes take over the cell, producing ...
... information into the bacterium. • Those genes take over the cell, producing ...
MB207Jan2010
... uncertain that G1 cells usually prefer to mend their DSBs by NHEJ. or on the -same chromosome if there are duplicate copies of the gene on the chromosome oriented in opposite directions (head-tohead or back-to-back). -Two of the proteins used in homologous recombination are encoded by the genes BRCA ...
... uncertain that G1 cells usually prefer to mend their DSBs by NHEJ. or on the -same chromosome if there are duplicate copies of the gene on the chromosome oriented in opposite directions (head-tohead or back-to-back). -Two of the proteins used in homologous recombination are encoded by the genes BRCA ...
DNA - Wsfcs
... Adenine pairs with Thymine Guanine pairs with Cytosine The nitrogen bases are held together by hydrogen bonds. Due to the base pairing the two strands are complementary to each other ...
... Adenine pairs with Thymine Guanine pairs with Cytosine The nitrogen bases are held together by hydrogen bonds. Due to the base pairing the two strands are complementary to each other ...
Document
... Each is base paired by hydrogen bonding with its specific partner: A with T G with C ...
... Each is base paired by hydrogen bonding with its specific partner: A with T G with C ...
DNA
... often compared to a set of blueprints or a recipe, or a code, since it contains the instructions needed to construct other components of cells, such as proteins and RNA molecules. The DNA segments that carry this genetic information are called genes, but other DNA sequences have structural purposes, ...
... often compared to a set of blueprints or a recipe, or a code, since it contains the instructions needed to construct other components of cells, such as proteins and RNA molecules. The DNA segments that carry this genetic information are called genes, but other DNA sequences have structural purposes, ...
Chapter 14 - Dr. Wilson`s Site
... Several experiments were required to conclusively determine which substance made up genes. – Griffith experiment documented movement of genes from one organism to another (transformation) movement of material can alter the genetic makeup of the recipient cell ...
... Several experiments were required to conclusively determine which substance made up genes. – Griffith experiment documented movement of genes from one organism to another (transformation) movement of material can alter the genetic makeup of the recipient cell ...
Chapter 12 DNA & RNA
... information into the bacterium. • Those genes take over the cell, producing ...
... information into the bacterium. • Those genes take over the cell, producing ...
DNA Worksheet
... within the cell. Think of proteins as the building blocks for an organism, proteins make up your skin, your hair, and 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. Chromosom ...
... within the cell. Think of proteins as the building blocks for an organism, proteins make up your skin, your hair, and 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. Chromosom ...
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.