Vocabulary words II: 1. Closed system - a region that is isolated from its surroundings by a boundary that admits no transfer of matter or energy across it 2. Undefined media - basal or complex media 3. Z-streak - is a technique used to isolate a pure strain from a single species of microorganism‚ often bacteria 4. Selective media – a growth medium or culture medium is a liquid or gel designed to support the growth of microorganisms or cells‚ or small plant 5. Differential media -are
Free DNA Bacteria Metabolism
have experienced convergent evolution. C) DNA was the first genetic material. D) The same codons in different organisms translate into the different amino acids. E) Different organisms have different numbers of different types of amino acids. a 12) RNA polymerase in a prokaryote is composed of several subunits. Most of these subunits are the same for the transcription of any gene‚ but one‚ known as sigma‚ varies considerably. Which of the following is the most probable advantage for the organism of
Free DNA Bacteria
each phase of the typical batch growth curve 12.) Know the role of the stationary phase sigma factor‚ and understand how that ties to global regulation during transition to stationary phase 13.) Know the roles for Fis and H-NS in regulation of ribosomal synthesis; also note the physiological state of ribosomes (abundance) during log phase growth and what happens upon starvation for nutrients (ppGpp – stringent response) 14.) Understand the observation of diauxic growth in E. coli; What is the major
Premium Archaea Bacteria DNA replication
DNA |I | |INTRODUCTION | DNA (deoxyribonucleic acid)‚ molecule that acts as the mechanism of biological inheritance in almost all living creatures. DNA is found in nearly all cells and contains the coded instructions that control the workings of the cell. DNA is passed from parents to offspring‚ and contains the coded instructions that enable the offspring to develop from a single cell into an adult body. DNA is the most important molecule in life‚ and an understanding of the
Free DNA
teixobactin was a peptidoglycan synthesis inhibitor was found when the researchers ran tests using label incorporation in the bacteria S. aureus. The tests confirmed that teixobactin inhibited synthesis of peptidoglycan‚ however it had no effect on DNA‚ RNA‚ or protein. Due to resistance not being a factor‚ this suggested to the researchers that the teixobactin may bind to a number of targets‚ but it will not bind to a protein. The researchers then discovered that teixobactin was able to bind to modified
Premium Bacteria Antibiotic resistance Microorganism
of dek1 transcripts in wild type (WT)‚ dek1 non-expressing PpΔdek1 and dek1 overexpressing Pp35S:dek1 mutant of P. patens. Firstly the isolated total RNA from three variants were reverse transcribed to produce cDNA which were than amplified by the help of Real Time Polymerase Chain Reaction (RT-qPCR). Nanodrop instrument was used for measuring the RNA concentration which was found to be very low which is 23.7ng/µl in Δdek1 variant
Premium DNA Gene Genetics
The Evolution of Tuberculosis Before the 20th century‚ there was little hope of survival for patients diagnosed with tuberculosis. The disease was considered impossible to fight and the only course of remedy was staying healthy by managing a healthy diet and getting plenty of rest (Goldberg et al.‚ 2012). In 1921‚ advancements in scientific research led to the development of the first vaccine‚ known as Mycobacterium bovis bacillus Calmette-Guerin (BCG) (Lienhardt et al.‚ 2012). The discovery
Premium Tuberculosis
used to build DNA? Adenine‚ cytocine‚ guanine‚ thymine. 7. Which are used to build RNA? Adenine‚ uracil‚ cytocine‚ guanine. 8. What is a purine? How many rings do purines have? Purines are natural substances found in all of the body’s cells‚ and in virtually all foods. 9. What is a pyrimidine? How many rings do pyrimidines have? 2 rings. 10. How is DNA different from RNA (strands‚ sugars‚ base pairs‚ location)? RNA is a nucleic acid polymer consisting of nucleotide monomers.RNA nucleotides contain
Premium Management Marketing Strategic management
BIOL1102 2008 PRACTICE QUESTIONS FOR THE MID-TERM EXAM Practice Questions from week 2 lectures 1. The presence of cholesterol in the plasma membrane of some animals: a) Enables the membrane to stay fluid more easily when cell temperature drops b) Enables the animal to remove hydrogen atoms from saturated phospholipids c) Enables the animal to add hydrogen atoms to unsaturated phospholipids d) Makes the membrane less flexible‚ allowing it to sustain greater
Premium DNA replication DNA Bacteria
| |Calcium (Ca) |Co-factor in some enzymes |Formation of bones and teeth |Important in formation of cell wall | |Phosphorus (P) |Phosphate group in ATP |Component of RNA and DNA |Component of phospholipids. | | | | |Co-factor in protein synthesis | |Iron (Fe) |In
Free DNA