Biology and Genetics

1.How do drugs such as Viagra (Pfizer) act to treat erectile dysfunction? Consid

1.How do drugs such as Viagra (Pfizer) act to treat erectile dysfunction? Considering the cellular actions of drugs such as Viagra, why are these drugs not recommended for use by …

1.How do we differentiate between an occlusive stroke and a hemorrhagic stroke,

1.How do we differentiate between an occlusive stroke and a hemorrhagic stroke, and why is it crucial to do so as soon as possible? 2.There are many factors that go into determini…

1.How does the European Lowland differ north and south of the Rhine River? Why i

1.How does the European Lowland differ north and south of the Rhine River? Why is this? 2. Describe the different upland and mountain regions of Europe. 3. What are the major fact…

1.How many copies of each chromosome does a cell have if it is haploid? a.1 2 3

1.How many copies of each chromosome does a cell have if it is haploid? a.1 2 3 d.4 2.Eukaryotic chromosomes are composed of circular DNA with no proteins circular DNA with protei…

1.How might you go about treating immediate (Type I) hypersensitivity? 2.When a

1.How might you go about treating immediate (Type I) hypersensitivity? 2.When a person0 has hayfever, some common symptoms are runny nose, weeping eyes, difficulties in breathing,…

1.How would the zygote appear if two mutant yeast cells of opposite mating types

1.How would the zygote appear if two mutant yeast cells of opposite mating types were crossed (a crossed to an a ) and the mutations were allelic? Would the Zygote be Normal or Mu…

1.How would the zygote appear if two mutant yeast cells of opposite mating types

1.How would the zygote appear if two mutant yeast cells of opposite mating types were crossed (a crossed to an a ) and the mutations were allelic? Would the Zygote be Normal or Mu…

1.Humans breed other species to exhibit certain traits, such as larger size in c

1.Humans breed other species to exhibit certain traits, such as larger size in corn plants. This is an example of: random mating gene flow eugenics veterinary selection artificial…

1.Hydrogen becomes a liquid at 20.27K. What is this temperature in (a) °C? (b) °

1.Hydrogen becomes a liquid at 20.27K. What is this temperature in (a) °C? (b) °F? 2.Camels have been reported to drink as much as 22.5 gal of water in 12 hr. How many liters can …

1.I Explain the theory of Endosymbiosis and give an example of evidence that sup

1.I Explain the theory of Endosymbiosis and give an example of evidence that supports it. 2. A) Let's say you are going to design a cell, would you make it large or small? Explain…

1.I f the growth rate of a population decreases as the population size approache

1.If the growth rate of a population decreases as the population size approaches the carrying capacity, the population growth is described as a.spiraling b. logistic c. logarithmi…

1.Ice water has a lower density than liquid water, making it float. Describe why

1.Ice water has a lower density than liquid water, making it float. Describe why this property was essential for the development of life on this planet. 2. Unbuffered or weakly bu…

1.Identify THREE differences in type I muscle fibers compared to type IIx muscle

1.Identify THREE differences in type I muscle fibers compared to type IIx muscle fibers that improve the oxidative capacity of type I fibers. What type of exercise training would …

1.Identify the cell that myelinates axons within the spinocerebellar fiber tract

1.Identify the cell that myelinates axons within the spinocerebellar fiber tracts. fibrous astrocyte or   oligodendrocyte 2. Identify the peduncles through which paired spinocereb…

1.Identify your target behavior and state how you recorded it. 2. Describe the t

1.Identify your target behavior and state how you recorded it. 2. Describe the treatment procedures you used to change your behavior 3. Describe any difficulties implementing trea…

1.If a light ray is impingent on a smooth surface at an angle of 2.10E+1 deg to

1.If a light ray is impingent on a smooth surface at an angle of 2.10E+1 deg to the normal, what will be its angle of reflection? 2.Each of the following situations shows a ray of…

1.If a membrane transport protein sends compound A out of the cell while bringin

1.If a membrane transport protein sends compound A out of the cell while bringing compound B into the cell with the hydrolysis of ATP, this transporter would be             A. a s…

1.If a substance is moving from inside a cell to outside via simple diffusion th

1.If a substance is moving from inside a cell to outside via simple diffusion then which ONE of the following is CORRECT? Select one: a.Its transport rate is directly proportional…

1.If a substance is moving from inside a cell to outside via simple diffusion th

1.If a substance is moving from inside a cell to outside via simple diffusion then which ONE of the following is CORRECT? Select one: a.Its transport rate is directly proportional…

1.If blood circulating to a bird\'s feet standing in icc water cooled to 2 degre

1.If blood circulating to a bird's feet standing in icc water cooled to 2 degree C and was then returned to the bird's core without the heat savings that occurs with a countercurr…

1.If cells of an individual contain the same set of genes, how do these cells be

1.If cells of an individual contain the same set of genes, how do these cells become different from each other during development? A) Different cell type-specific regulatory eleme…

1.If measurements of the O18/O16 ratio in a marine fossil shell show a decrease

1.If measurements of the O18/O16 ratio in a marine fossil shell show a decrease in value (O18/O16 decreases), would this be characteristic of an interglacial warm period or a cool…

1.If phages are labeled only with radioactive sulfur and allowed to infect bacte

1.If phages are labeled only with radioactive sulfur and allowed to infect bacterial cells, the phage progeny resulting from lysis are expected a. To have radioactive DNA and prot…

1.If red blood cells are places in a hypertonic solution of sodiumchloride, what

1.If red blood cells are places in a hypertonic solution of sodiumchloride, what will happen to them? they will burst they will shrink they will swell they will stick together 2. …

1.If red blood cells are places in a hypertonic solution of sodiumchloride, what

1.If red blood cells are places in a hypertonic solution of sodiumchloride, what will happen to them? they will burst they will shrink they will swell they will stick together 2. …

1.If the even-skipped gene is non-functioning, which of the following types of g

1.If the even-skipped gene is non-functioning, which of the following types of genes would you predict to be mis-expressed? gap, segment-polarity, and homeotic genes segment-polar…

1.If the water temperature of a pond increases by a significant amount, which of

1.If the water temperature of a pond increases by a significant amount, which of the following would you expect to occur most immediately? A) The levels of DO would increase. B) T…

1.If two individuals were heterozygous for freckles, which is a dominant trait,

1.If two individuals were heterozygous for freckles, which is a dominant trait, what percentage of their progeny would have freckles? 2.In a cross between an individual with Hunti…

1.If you want to build up a cDNA library, which of the following is NOT necessar

1.If you want to build up a cDNA library, which of the following is NOT necessary? Ligase Endogenous restriction enzyme RNA polymerase Reverse transcription DNA polymerase 2. What…

1.If you would like to enjoy a sweet pineapple, when would it be best to harvest

1.If you would like to enjoy a sweet pineapple, when would it be best to harvest it (remember, pineapples are CAM plants)? a.Midnight b.Early morning c.Late afternoon d.Time of da…

1.Imagine that you discover a new continent. On the west coast of the continent

1.Imagine that you discover a new continent. On the west coast of the continent you further discover a chain of volcanoes running parallel to shore. What may you conclude about lo…

1.Improvement of worker health and safety should be a priority task for business

1.Improvement of worker health and safety should be a priority task for businesses, emphasizing not only on those high-risk jobs but in the entire work process. True False 2. OSHA…

1.In 1971, Dr. Judah Folkman published the “angiogenic hypothesis” suggesting th

1.In 1971, Dr. Judah Folkman published the “angiogenic hypothesis” suggesting that a tumor cannot grow beyond 1–2 millimeters without the development of new blood vessels (angioge…

1.In C. difficile what condition is disrupted that allows the organisms to predo

1.In C. difficile what condition is disrupted that allows the organisms to predominate and cause disease? 2. Describe the disease causing agent in C. difficile infection in terms …

1.In DNA cloning experiments such as the one we are carrying out in lab, we sele

1.In DNA cloning experiments such as the one we are carrying out in lab, we select for bacteria that have taken up the desired plasmid based on the plasmid providing _____________…

1.In DNA cloning experiments such as the one we are carrying out in lab, we sele

1.In DNA cloning experiments such as the one we are carrying out in lab, we select for bacteria that have taken up the desired plasmid based on the plasmid providing _____________…

1.In Drosophila, brittle (b), ebony body (e) and gaucho (g) are three recessive

1.In Drosophila, brittle (b), ebony body (e) and gaucho (g) are three recessive genes. If homozygous EBONY females are crossed with homozygous BRITTLE & GAUCHO males, the resu…

1.In Most areas of the continental crust, significant earthquakes occur only wit

1.In Most areas of the continental crust, significant earthquakes occur only within the upper 15 to 20 kilometers. This is best explained by? a. below 15 to 20km the crust is warm…

1.In a heavy snow year that sees an expansion of the zone of accumulation, what

1.In a heavy snow year that sees an expansion of the zone of accumulation, what happens to the line of equilibrium? It increases in elevation. It retreats away from the toe. It re…

1.In a population of deer a single gene controls the coat coloration trait. Of t

1.In a population of deer a single gene controls the coat coloration trait. Of the 20 deer in this population 4 of them express a recessive purple hair trait while the rest expres…

1.In addition to motility, actin filaments are important for the formation and m

1.In addition to motility, actin filaments are important for the formation and maintenance of some cell structures. Describe the location and actin organization of at least one of…

1.In an alternate universe speed of light is different. Would an equivalent rela

1.In an alternate universe speed of light is different. Would an equivalent relation between frequency and wavelength still hold? If yes, why? If no, why? Establish your point by …

1.In an analysis of oral fluid for the cocaine group, which of the following spe

1.In an analysis of oral fluid for the cocaine group, which of the following species should be found most often? a. BZE only b. BZE in combination with parent cocaine c. Anhydroec…

1.In eukaryotes, DNA methylation is involved in all the following except: a.regu

1.In eukaryotes, DNA methylation is involved in all the following except: a.regulating transcription by methylation at CpG island b.enhancing compacted conformation of DNA c.genom…

1.In lilies, large lilies are dominant to small ones and green ones are dominant

1.In lilies, large lilies are dominant to small ones and green ones are dominant to white ones. You cross two lilies heterozygous for both traits and receive the following results…

1.In pea plants, smooth (S) peas are dominant over wrinkled (s) peas in the sing

1.In pea plants, smooth (S) peas are dominant over wrinkled (s) peas in the single gene controlling pea texture. A plant with smooth peas is crossed with a plant with wrinkled pea…

1.In small doses, alcohol is a______; in larger doses, it is a _____ A. Stimulan

1.In small doses, alcohol is a______; in larger doses, it is a _____ A. Stimulant; depressant B. Hallucinogen; stimulant C. Depressant;depressant D. Depressant; stimulant. I picke…

1.In the 2000s, water in March Arabs became saltier than it was in the 1950s due

1.In the 2000s, water in March Arabs became saltier than it was in the 1950s due to the___________ intrusion of seawater increased agricultural runoff lack of spring floods decrea…

1.In the T7/lac expression system used for ADH expression, which of the followin

1.In the T7/lac expression system used for ADH expression, which of the following is true? The promoter for the ADH gene is specific for E. coli RNA polymerase. The promoter for t…

1.In the following, what kind of chemical reaction is shown? R-CHO + H2O + NAD+

1.In the following, what kind of chemical reaction is shown? R-CHO + H2O + NAD+ ® R-COOH + NADH + H+ deamination hydrolysis dehydration synthesis (condensation) neutralization oxi…