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1. Antibiotic resistance in bacteriaa) Is a life threatening problem which is increasing in occurrence.b) Is caused by over use of pesticidesc) Is caused by over use of fungicidesd) Could endanger species of bacteria.
2. What happens to colonies of bacteria that live in your body when they gain a mutation that helps them tolerate colder temperatures than 98.6?a) They succeed in human populations in cold climatesb) They out compete bacteria who are unable to tollerate colder temperatures.c) They are eventually out competed by bacteria who don't have the burden of replicating all the molecules associated with tolerating cold.d) They simply live like the other bacteria. Bacterial populations are continually amassing all their mutations.
3. Based on the reading, the solution to health problem of antibiotic resistant strains of bacteria may be:a) developing new antibioticsb) to develop new classes of antibioticsc) to fight fire with fire: bread bacteria that are supper susceptible to antibiotics so that they will breed with the resistant strains and pass on their "low quality" genes.d) to reduce the use of antibiotics
Three patients are in intensive care buy will survive. One has brain damage from a stroke, one has severe heart muscle damage from a heart attack and the third has a severely damaged liver from a car accident.
Which 2 amino acids donate amino groups to other compounds for nitrogen metabolism? What citric acid cycle intermediate can be converted to aspartic acid upon acceptance of an amino group.define the 2 nonstandard amino acids in the urea cycle.
Would two nucleotides at a time be sufficient to provide enough codons to code for all twenty amino acids? Discuss how many amino acids could be coded for by codons containing only two nucleotides?
You have stock solutions of 10 M KCl and 100 mM HEPES buffer, pH 7.5. You are asked to prepare a 100 mls of 100mM HEPES buffer containing 0.35 mM KCl. How would you make this buffer solution?
Determine the independent variable in the corn experiment? What was the dependent variable in the corn experiment?
Calculate the heat necessary to convert 10.0 grams of solid benzene at its melting point to vapor at its boiling point. The specific heat of liquid benzene is 0.580 cal.
Explain physiological changes that occur in three different organ systems when food is ingested and how these systems coordinated a response in the human body.
2-different mutations are identified in a haploid strain of yeast. The first prevents the synthesis of adenine by a nonsense mutation of the ade one gene.
The development of population genetics happened after the re-discovery of Mendel's laws, and merges the inheritance of traits with Darwin's theory of natural selection.
How is variability, diploid, independent assortment, crossing over, out breeding mechanisms, polymorphism, heterozygote superiority, hybrid vigor, clines and ecotypes, protogenes, and gene amplification and Pleiotropy relate.
A nine year-old boy decided to find out how long he could breathe into and out of a paper bag. After ~2 minutes his friends noticed that he was breathing very rapidly.
Researchers have adapted the principles of affinity chromatography to purify different types of protein, including lectin, recombinant protein and antibodies. Describe the ligand and matrix associated with isolating each of these three proteins.
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