Biology and Genetics

You are studying the genes Rtl1 and Mtl2 that are unlinked autosomal genes known

You are studying the genes Rtl1 and Mtl2 that are unlinked autosomal genes known to affect tail length in mice. Recessive knockout mutations of each gene individually cause the ta…

You are studying the genes Rtrl1 and Mtl2 that are unlinked autosomal genes know

You are studying the genes Rtrl1 and Mtl2 that are unlinked autosomal genes known to affect tail length in mice. Recessive knockout mutations of each gene individually (i.e. rrMM,…

You are studying the genetics of hair characteristics in mice. You find two new

You are studying the genetics of hair characteristics in mice. You find two new interesting mutants one with abnormally thick hair and one with abnormally curly hair. You describe…

You are studying the immune response to Shigella in mice. You infect the mice wi

You are studying the immune response to Shigella in mice. You infect the mice with bacteria for one week. Following infection, you sacrifice the mice and isolate white blood cells…

You are studying the influence of migration on allele frequencies in two isolate

You are studying the influence of migration on allele frequencies in two isolated populations of an endangered species (i.e., they haven’t exchanged migrants in a very long time).…

You are studying the inheritance of genes controlling tail size and fur color in

You are studying the inheritance of genes controlling tail size and fur color in squirrels. Based on past observations, it is known that the long tail allele is dominant (L) and t…

You are studying the mushroom gene ZIP. which you have cloned. ZIP is not transc

You are studying the mushroom gene ZIP. which you have cloned. ZIP is not transcribed in young mushrooms, but is transcnbed in old mushrooms. Previous studies had suggested that t…

You are studying the nuclear import of 3 different proteins by injecting purifie

You are studying the nuclear import of 3 different proteins by injecting purified, GFP- tagged versions into the cell cytoplasm. If you inject each protein individually, they are …

You are studying the process of glycogen degradation in hepatocytes (liver cells

You are studying the process of glycogen degradation in hepatocytes (liver cells). To understand the role of this process in cell metabolism you add an inhibitor of glycogen degra…

You are studying the process of glycogen degradation in hepatocytes (liver cells

You are studying the process of glycogen degradation in hepatocytes (liver cells). To understand the role of this process in cell metabolism you add an inhibitor of glycogen degra…

You are studying the process of glycogen degradation in hepatocytes (liver cells

You are studying the process of glycogen degradation in hepatocytes (liver cells). To understand the role of this process in cell metabolism you add an inhibitor of glycogen degra…

You are studying the process of glycogen degradation in hepatocytes (liver cells

You are studying the process of glycogen degradation in hepatocytes (liver cells). To understand the role of this process in cell metabolism you add an inhibitor of glycogen degra…

You are studying the process of translation and you are working with a mutant of

You are studying the process of translation and you are working with a mutant of the amino-acyl tRNA synthetase for valine. You purify the enzyme and analyze its biochemical activ…

You are studying the protein Hrd1, which has been implicated in rheumatoid arthr

You are studying the protein Hrd1, which has been implicated in rheumatoid arthritis. Hrd1 is a multi- pass transmembrane protein that detects misfolded proteins as part of the “u…

You are studying the psychopharmacological effects of lithium. Your literature s

You are studying the psychopharmacological effects of lithium. Your literature searches indicate that, in the neuron, Li+ interferes with the metabolism of the secondary messenger…

You are studying the regulatory DNA of a mouse gene expressed in developing hear

You are studying the regulatory DNA of a mouse gene expressed in developing heart liver, and lung tissue. Your preliminary work has shown that heart and lung expression of this ge…

You are studying the relative size and numbers of living organisms. In your stud

You are studying the relative size and numbers of living organisms. In your study you recall relationships between cell size and volume and use that to consider observations of na…

You are studying the tryptophan synthetase gene that Yanofsky also examined to d

You are studying the tryptophan synthetase gene that Yanofsky also examined to determine the relationship between the nucleotide sequence and the amino acid sequence of the gene. …

You are studying three autosomal recessive mutations in a Mongonian fly that is

You are studying three autosomal recessive mutations in a Mongonian fly that is reminiscent of Drosophila here on Earth. Flies that are homozygous for the rd mutation are red-wing…

You are studying three linked genes in snapdragons. The flower color locus is in

You are studying three linked genes in snapdragons. The flower color locus is in the center. There are 11.3 cM between the flower color locus and the plant height locus. There are…

You are studying three populations of mountain unicorns (Unicornus montanus). It

You are studying three populations of mountain unicorns (Unicornus montanus). It has been shown that heterozygosity at the A locus has been linked with increased resistance to cor…

You are studying transcriptional regulation of a prokaryotic gene. You know this

You are studying transcriptional regulation of a prokaryotic gene. You know this gene has one transcription regulatory protein that regulates its transcription, and there is one l…

You are studying two identical rhabdomeric photoreceptors, X and Y, and measure

You are studying two identical rhabdomeric photoreceptors, X and Y, and measure the amount of neurotransmitter released by each photoreceptor at rest. You treat only Y with 3-nitr…

You are studying two linked genes in lizards. You have two females and you know

You are studying two linked genes in lizards. You have two females and you know that both are the same genotype, heterozygous for both genes (A/a and B/b). You test-cross each fem…

You are studying two populations of endangered Phlox darwinii (a flowering plant

You are studying two populations of endangered Phlox darwinii (a flowering plant). In population #1, you observe that within individual flowers, pollen can contact the pistil for …

You are studying two populations of rotifers. In Population 1, you find signific

You are studying two populations of rotifers. In Population 1, you find significantly higher genetic diversity than in Population 2. You also observe that females in Population 2 …

You are studying two proteins in E. coli. You notice that a mutation that leads

You are studying two proteins in E. coli. You notice that a mutation that leads to a truncated protein 1 (due to a premature stop codon) also down-regulates expression of protein …

You are studying whether factory workers\' exposure to industrial smoke contribu

You are studying whether factory workers' exposure to industrial smoke contributes to the development of lung cancer. You perform a cohort study of people who work in the factory …

You are studying wing colour in butterflies. You cross pure-breeding male butter

You are studying wing colour in butterflies. You cross pure-breeding male butterflies that have blue wings with yellow eyespots, with pure-breeding female butterflies with orange …

You are studying wing size in the fruit fly Drosophila melanogaster. You have fo

You are studying wing size in the fruit fly Drosophila melanogaster. You have four pure-breeding lines of flies (named small1.small2, etc) with abnormally small wings. You have al…

You are stuyding a water soluble protein that functions in the ER lumen. Based o

You are stuyding a water soluble protein that functions in the ER lumen. Based on that information, which of the following statements about your protein must be correct? You are s…

You are supposed to conduct a survey on the following topic. Thetopic of your su

You are supposed to conduct a survey on the following topic. Thetopic of your survey is Survey Topic “Why our young generation is more interested in goingabroad” Purpose of this S…

You are taking a small study break, looking out of the window at a tree across t

You are taking a small study break, looking out of the window at a tree across the street. When you then return to reading your book, what occurs in the eye to allow you to focus …

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the l

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the low care wing of an Aged Care unit. She suffered a stroke last year resulting in right sided weaknes…

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the l

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the low care wing of an Aged Care unit. She suffered a stroke last year resulting in right sided weaknes…

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the l

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the low care wing of an Aged Care unit. She suffered a stroke last year resulting in right sided weaknes…

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the l

You are taking care of a newly admitted 78 year old resident, Ms. Wong, in the low care wing of an Aged Care unit. She suffered a stroke last year resulting in right sided weaknes…

You are tasked with cutting a piece of DNA with the following two restriction en

You are tasked with cutting a piece of DNA with the following two restriction enzymes in the same reaction EcoR1 5' G"AATTC 3' 3' CTTAA"G 3' Sma1 5' CCC"GGG 3' 3' GGG"CCC 5' 5'-CT…

You are tasked with developing an informative sales pitch for either chewing sti

You are tasked with developing an informative sales pitch for either chewing sticks or teeth blackeners. This should be a fun and educational activity for us all to share in. Thin…

You are tasked with identifying lead molecules for a protein tyrosine kinase cal

You are tasked with identifying lead molecules for a protein tyrosine kinase called PTKA1. All lead molecules must be highly specific for inhibition of PTKA1 over its isoform PTKA…

You are testing the effects of drugs on a somatic neuron, Adding epinephrine to

You are testing the effects of drugs on a somatic neuron, Adding epinephrine to the dendrites generates an EPSP (via influx of calcium ions), leading to action potential, and ACh …

You are testing the effects of drugs on a somatic neuron. Adding epinephrine to

You are testing the effects of drugs on a somatic neuron. Adding epinephrine to the dendrites generates an EPSP (via influx of calcium ions), leading to action potential, and ACh …

You are testing the effects of drugs on three identical, isolated neurons. You k

You are testing the effects of drugs on three identical, isolated neurons. You know that if no drug is applied, the neuron (under the appropriate conditions) is capable of EPSP fo…

You are testing the growth parameters of a novel heterotrophic bacterial species

You are testing the growth parameters of a novel heterotrophic bacterial species you have isolated. To determine its optimal growth temperature, you will want to determine specifi…

You are testing the null hvpothesis that the outcome of a dihybrid cross conform

You are testing the null hvpothesis that the outcome of a dihybrid cross conforms to a 1:1:1:1 ratio resulting from a cross between a heterozygous individual (AaBb) and a homozygo…

You are testing two possible Euler pole positions to see which one is the better

You are testing two possible Euler pole positions to see which one is the better solution to describe the relative motion of two plates. For each Euler pole you have calculated th…

You are the Administrator of the Radiology Department responsible for the day to

You are the Administrator of the Radiology Department responsible for the day to day operation as well as developing the capital budget. Your capital budget for fiscal year 2015(J…

You are the CEO for a radiology imagining center that has seen a 10 percent drop

You are the CEO for a radiology imagining center that has seen a 10 percent drop in utilization over the past year. Utilization is expected to drop another 10 percent for each of …

You are the Chief Operating Officer of your hospital. New federal laws, includin

You are the Chief Operating Officer of your hospital. New federal laws, including the Affordable Care Act, vigorously promote the use of Electronic Health Records (EHR). As a resu…

You are the Director of Clinical Informatics at an academic medical center in th

You are the Director of Clinical Informatics at an academic medical center in the western United States. Part of your role is to oversee the patient portal which is considered par…