Biology and Genetics

You are collaborating with a group of archeologists to reconstruct the history o

You are collaborating with a group of archeologists to reconstruct the history of cattle domestication. Your archeologist colleagues tell you that cattle were already domesticated…

You are collecting plasma from a patient with a pheresis machine that takes whol

You are collecting plasma from a patient with a pheresis machine that takes wholeblood from the body, extracts 80% by mass of the plasma and returns the remainderof the blood to t…

You are comparing the alpine plant diversity (measured here as species richness)

You are comparing the alpine plant diversity (measured here as species richness) of peaks in the Northern versus Southern Rocky Mountains. The Northern site has 30 plant species a…

You are concentrating a solution containing a polypeptide of modest molecular we

You are concentrating a solution containing a polypeptide of modest molecular weight by pressure filtration through a membrane. The solute concentration on the feed side of the me…

You are concerned about your friend choosing this relatively untested product, s

You are concerned about your friend choosing this relatively untested product, so you decide to carry out an experiment to test the product's claims. Your experiment involves feed…

You are conducting a case control study to determine if an association exists be

You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statewide cancer registry, you identify 1,107 people who …

You are conducting a long-term study and find a number of skulls on the landscap

You are conducting a long-term study and find a number of skulls on the landscape that you are able to age. Specifically, you find 50 skulls, and after careful examination of toot…

You are conducting a mark-recapture study of a population of shouters. During yo

You are conducting a mark-recapture study of a population of shouters. During your first sampling period, you go out and catch/mark/release 132 shouters. You return to your shoute…

You are conducting a mark-recapture study of a population of snouters. During yo

You are conducting a mark-recapture study of a population of snouters. During your first sampling period you go out and catch/mark/release 135 snouters. You return to your snouter…

You are conducting a study on the preferences of female sage-grouse for large th

You are conducting a study on the preferences of female sage-grouse for large throat sacs on males (see picture), where larger inflatable sacs may signal better body condition and…

You are conducting a study on the preferences of female sage-grouse for large th

You are conducting a study on the preferences of female sage-grouse for large throat sacs on males (see picture), where larger inflatable sacs may signal better body condition and…

You are conducting a study to determine the effects of chemotherapy on the survi

You are conducting a study to determine the effects of chemotherapy on the survival of subjects with pancreatic carcinoma. Subjects are enrolled at diagnosis and treated immediate…

You are conducting a study to quantify copy number variations (CNVs) in the geno

You are conducting a study to quantify copy number variations (CNVs) in the genomes of cancer patients. You use CGH to obtain hybridization signals for each sample. In one sample …

You are conducting a study to quantify copy number variations (CNVs) in the geno

You are conducting a study to quantify copy number variations (CNVs) in the genomes of cancer patients. You use CGH to obtain hybridization signals for each sample. In one sample …

You are conducting population genetic research on dung beetles and you would lik

You are conducting population genetic research on dung beetles and you would like to use RADseq. Based on this answer the questions below a. Give three reasons that RADseq is a gr…

You are conducting research on a new Hfr strain in E. coli that you have develop

You are conducting research on a new Hfr strain in E. coli that you have developed and obtain the following data. Use the data to give the order of the genes on the bacterial chro…

You are considering a cell with a diploid number of 16. It\'s haploid number wou

You are considering a cell with a diploid number of 16. It's haploid number would therefore be _______. By the end of prophase, this cell would have______ chromosomes, and chromat…

You are considering five different DNA probes for use in a DNA fingerprinting an

You are considering five different DNA probes for use in a DNA fingerprinting analysis. Shown below is a table illustrating the statistical certainty of obtaining a matching patte…

You are considering the purchase of a new high-efficiency machine to replace old

You are considering the purchase of a new high-efficiency machine to replace older machines now. The new machine can replace four of the older machines, each with a current market…

You are contacted by a medical examiner seeking your expertise in cellular respi

You are contacted by a medical examiner seeking your expertise in cellular respiration. She is investigating a suspicious death and believes the deceased may have been a victim of…

You are cooking the family\'s Thanksgiving meal. Your sister walks into your hom

You are cooking the family's Thanksgiving meal. Your sister walks into your home and remarks that the food smells delicious. You smile and wonder how you can hardly smell the food…

You are counseling in an agency setting in which your supervision consists of a

You are counseling in an agency setting in which your supervision consists of a weekly group staff meetings. At these meetings, agency policies, procedures, and other administrati…

You are culturing a bacterium that n an ideal chemostat of volume 5 liters that

You are culturing a bacterium that n an ideal chemostat of volume 5 liters that will be operated at steady state. The feed flow rate is set at 1.75 liters/hr, the substrate concen…

You are curious about the surface area of soil particles near the soil surface.

You are curious about the surface area of soil particles near the soil surface. Suppose that the soil is at a bulk density of 1.38 g cm-3 and contains (by weight) 20% clay, 40% si…

You are describing the solar nebula theory to a friend. You point out that it pr

You are describing the solar nebula theory to a friend. You point out that it provides an explanation for the regular motion in our solar system, the division of the planets into …

You are designing a FRET experiment to measure the folding and unfolding of a RN

You are designing a FRET experiment to measure the folding and unfolding of a RNA molecule. You have labeled the two ends of the RNA molecule with Cy3 and Cy5 dye, respectively. T…

You are designing a museum exhibit to teach people about cells. In the entrance

You are designing a museum exhibit to teach people about cells. In the entrance to the exhibit, visitors riding a moving walkway under flashing lights will gradually “shrink” down…

You are designing a small randomized trial (a pilot study) to compare ketamine (

You are designing a small randomized trial (a pilot study) to compare ketamine (given by infusion) to placebo (also given by infusion) for treatment-resistant depression in adoles…

You are designing a spaceship that will carry roughly 2000 humans to a nearby st

You are designing a spaceship that will carry roughly 2000 humans to a nearby star system, Tau Cell, 11.8 light years away. To sustain your crew for the mission, you require a shi…

You are designing a trial to compare two drugs for treating heart disease; this

You are designing a trial to compare two drugs for treating heart disease; this trial will use a composite endpoint. You need to choose between two possible composite endpoints: (…

You are determing the structure of a new protein. When you perform molecular exc

You are determing the structure of a new protein. When you perform molecular exclusion chromatography you determine that the size of the protein is 300 kDa. Next you perform a SDS…

You are diagnosing a female patient with repetitive pyogenic (= pus-forming) bac

You are diagnosing a female patient with repetitive pyogenic (= pus-forming) bacterial infections. Her lab tests show elevated levels of serum IgM, but pathologically low concentr…

You are digesting a protein 625 amino acids long with the enzymes Factor X_a and

You are digesting a protein 625 amino acids long with the enzymes Factor X_a and thrombin, which are proteases that bind to and cut proteins at particular short sequences of amino…

You are digesting a protein 625 amino acids long with the enzymes Factor Xa and

You are digesting a protein 625 amino acids long with the enzymes Factor Xa and thrombin, which are proteases that bind to and cut proteins at particular short sequences of amino …

You are doing a lab research to understand how the recognition of bacteria by ma

You are doing a lab research to understand how the recognition of bacteria by macrophage contributes to the host defense. It has been shown that the secretion of proinflammatory c…

You are doing a mapping experiment with bacteria. You have combined an Hfr strai

You are doing a mapping experiment with bacteria. You have combined an Hfr strain (strs) with genotype arg+, his+, thr+. The recipient, F- cell is arg-, his- and thr-. You allow c…

You are doing a mini prep, and you\'re performing every step exactly to instruct

You are doing a mini prep, and you're performing every step exactly to instructions. You are on the drying step. After drying your column you want to keep a. the column and the co…

You are doing a rotation in a lab in Neither City. A colleague has sent you a pl

You are doing a rotation in a lab in Neither City. A colleague has sent you a plasmid vector construct containing the gene for smartase isolated from unicorn. To confirm the DNA s…

You are doing a rotation in the hospital’s clinical laboratory. A sample of clou

You are doing a rotation in the hospital’s clinical laboratory. A sample of cloudy cerebrospinal fluid (CSF) from a suspected meningitis case arrives and you are told to Gram stai…

You are doing a study of birds and are estimating the fitness of each individual

You are doing a study of birds and are estimating the fitness of each individual. The birds in your study typically stay at their birth nest in year 2 to help raise the next clutc…

You are doing a study of birds and are estimating the fitness of each individual

You are doing a study of birds and are estimating the fitness of each individual. These birds typically stay at their birth nest in Year 2 to help raise the next clutch of brother…

You are doing a study of birds and are estimating the fitness of each individual

You are doing a study of birds and are estimating the fitness of each individual. These birds typically stay at their birth nest in Year 2 to help raise the next clutch of brother…

You are doing an experiment measuring the effect of salinity on early sea urchin

You are doing an experiment measuring the effect of salinity on early sea urchin development. With your data from 180min after mixing eggs and sperm in both normal seawater and 50…

You are doing an experiment similar to the Meselson-Stahl experiment, except tha

You are doing an experiment similar to the Meselson-Stahl experiment, except that you are using radioactive phosphorus, ^32 P, instead of heavy nitrogen, ^15 N. The procedure is a…

You are doing an experiment with liposomes (spherical vesicles with phospholid b

You are doing an experiment with liposomes (spherical vesicles with phospholid bilayers) containing only one protein in their membranes: Na^+ -K^+ pumps. Inside the membrane of th…

You are driving a car 35 mi/h down the road. The stoplight in front of you sudde

You are driving a car 35 mi/h down the road. The stoplight in front of you suddenly turns red and you slam on the brakes, skidding to a halt. You get out of the car and measure th…

You are eating a turkey sandwich with lettuce on a whole-wheat bun. Which comple

You are eating a turkey sandwich with lettuce on a whole-wheat bun. Which complex carbohydrate (s) will your body not be able to break down or metabolize from the sandwich? Select…

You are employed as a consultant at a large paper company, because the company i

You are employed as a consultant at a large paper company, because the company is concerned about defoliation caused by insects in its poplar plantations. Insect damage can have s…

You are employed as a research assistant at a Medical University. Your advisor h

You are employed as a research assistant at a Medical University. Your advisor has found an animal with turquoise eyes, that are products from a recessive gene, with a Mendelian p…

You are encouraged to review what you have learned about glycolysis, fermentatio

You are encouraged to review what you have learned about glycolysis, fermentation, the conversion of pyruvic acid into acetyl-CoA, and the Krebs cycle. In this section, however, w…