Biology and Genetics

You are starting your 3:00-to-11:00 pm shift on a medical-surgical floor. After

You are starting your 3:00-to-11:00 pm shift on a medical-surgical floor. After a brief report and assessment of your six assigned patients, you start your med pass. The patient i…

You are still crazy about studying plants, kind of like Mendel. You take two var

You are still crazy about studying plants, kind of like Mendel. You take two varieties of plants, one produces a tall plant with blue seeds and a second one produces short plants …

You are still in South America collecting data on the new rodent species you dis

You are still in South America collecting data on the new rodent species you discovered last week. You have recently discovered that these rodents have 30 chromosomes in their som…

You are stranded in the middle of nowhere. All foods that can be picked, dug up,

You are stranded in the middle of nowhere. All foods that can be picked, dug up, caught, killed, etc are not edible. You do have access to a rescue team that can parachute in five…

You are stranded on a barren island without any electronic or mechanical items a

You are stranded on a barren island without any electronic or mechanical items available to you. However, the native tigers are big fans of Physical Oceanographers and promise not…

You are stretching your calves. Your upper extremities are out in front of you,

You are stretching your calves. Your upper extremities are out in front of you, flexed at the shoulder, extended at the elbow and wrist, supporting your body against a wall. Your …

You are studying 3 genes X,Y and Z that are linked (and in that order; Y is in t

You are studying 3 genes X,Y and Z that are linked (and in that order; Y is in the middle). The distance between X and Y is 10 map units and the distance between Y and Z is 8 map …

You are studying 3 genes X,Y,and Z that are linked (and in that order; Y is in t

You are studying 3 genes X,Y,and Z that are linked (and in that order; Y is in the middle). The distance between X and Y is 10 map units and the distance between Y and Z is 8 map …

You are studying DNA polymerase ? (pol ?) from the thermophile, B. usfveryhotili

You are studying DNA polymerase ? (pol ?) from the thermophile, B. usfveryhotilis. Pol ? is very similar to pol III from E. coli, except that activity of pol ? is exactly the same…

You are studying DNA synthesis using a biochemical assay. Your assay system cont

You are studying DNA synthesis using a biochemical assay. Your assay system contains everything DNA polymerase needs to synthesize DNA. The double-stranded DNA molecule used for y…

You are studying a bacterial gene that produces an octapeptide. The sequence of

You are studying a bacterial gene that produces an octapeptide. The sequence of the protein coding part of the RNA is: 5’-AUGUUUGGGCAGGGUAUAACCCGAUGA-3’ (a) Using the genetic code…

You are studying a beautiful little protist under a microscope. You can see that

You are studying a beautiful little protist under a microscope. You can see that it has a particulary elaborate cel wall with an intricate. fancy pattern. The cell wall consists o…

You are studying a cell line that responds to a peptide ligand called Fge1 by ac

You are studying a cell line that responds to a peptide ligand called Fge1 by activating a MAP kinase pathway. In these cells, activation of the MAP kinase pathway ultimately lead…

You are studying a cell that, before the S phase of the cell cycle, has 8 chromo

You are studying a cell that, before the S phase of the cell cycle, has 8 chromosomes and 2.4 picograms (2.4 X 1012 grams) of DNA. Complete the following table with the expected n…

You are studying a cell which, before the S phase of the cell cycle, has 8 chrom

You are studying a cell which, before the S phase of the cell cycle, has 8 chromosomes and 2.4 picograms (2.4 × 1012 grams) of DNA. Complete the following table with the expected …

You are studying a cytosolic protein; your friend is studying a nuclear localiza

You are studying a cytosolic protein; your friend is studying a nuclear localization signal. How could you work together to show that his/her NLS is sufficient to cause any protei…

You are studying a developing neuron which is functionally immature. The cell ex

You are studying a developing neuron which is functionally immature. The cell experiences the following ionic concentrations. What is the Nernst equilibrium potential for each ion…

You are studying a diploid flower you discovered in your back yard. You have map

You are studying a diploid flower you discovered in your back yard. You have mapped two genes, one for flower color (B) and one for leaf shape (A). During your mapping, you learne…

You are studying a diploid flower you discovered in your back yard. You have map

You are studying a diploid flower you discovered in your back yard. You have mapped two genes, one for flower color (B) and one for leaf shape (A). During your mapping, you learne…

You are studying a diploid flower you discovered in your back yard. You have map

You are studying a diploid flower you discovered in your back yard. You have mapped two genes, one for flower color (B) and one for leaf shape (A). During your mapping, you learne…

You are studying a gene (Gene X) in Escherichia coli that is expressed at 45 ºC

You are studying a gene (Gene X) in Escherichia coli that is expressed at 45 ºC but not at 37 ºC. You have shown that the regulation of this gene occurs at the level of transcript…

You are studying a gene for protein X expressed in bacteria. You have subjected

You are studying a gene for protein X expressed in bacteria. You have subjected the bacteria to an agent that generates point mutations and isolated a number of mutant strains wit…

You are studying a gene that encodes the major histone acetyltransferase enzyme

You are studying a gene that encodes the major histone acetyltransferase enzyme in neurons. You've identified cells that homozygously express a conditionally mutant allele that is…

You are studying a gene that encodes the major histone acetyltransferase enzyme

You are studying a gene that encodes the major histone acetyltransferase enzyme in neurons. You've identified cells that homozygously express a conditionally mutant allele that is…

You are studying a group of mammals in which females have greyish-brown fur but

You are studying a group of mammals in which females have greyish-brown fur but males’ fur ranges from dull yellow to a bright lemon-yellow colour. Females mate, eat, and rear the…

You are studying a hormone receptor that could be either a glucagon receptor or

You are studying a hormone receptor that could be either a glucagon receptor or insulin receptor. Which observation(s) would allow you to conclusively determine you are studying a…

You are studying a lab population of guppies of approximately 150 individuals. Y

You are studying a lab population of guppies of approximately 150 individuals. You have collected genotype data for a "neutral" locus and calculate heterozygosity (H) to be 0.33 […

You are studying a mammalian gene that has a mutation resulting in a premature s

You are studying a mammalian gene that has a mutation resulting in a premature stop codon that occurs in exon 1. The gene codes for four exons. When expressed, this PMC is expecte…

You are studying a membrane protein, Lippy, that you suspect binds to lipids wit

You are studying a membrane protein, Lippy, that you suspect binds to lipids with a role in maintaining proper membrane lipid composition. You want to know both, (i) WHERE in the …

You are studying a membrane protein, Lippy, that you suspect binds to lipids wit

You are studying a membrane protein, Lippy, that you suspect binds to lipids with a role in maintaining proper membrane lipid composition. You want to know both, WHERE in the cell…

You are studying a mouse gene MtoA. You know the protein product of localizes to

You are studying a mouse gene MtoA. You know the protein product of localizes to mitochondria in mice. Your goal is to know whether the mouse MtoA protein is capable of localizing…

You are studying a mutant form of a particular transcription factor linked to th

You are studying a mutant form of a particular transcription factor linked to the development of human disease. You identify a single nucleotide polymorphism (SNP-a mutation that …

You are studying a mutation of a signaling protein. The mutant protein is comple

You are studying a mutation of a signaling protein. The mutant protein is completely nonfunctional and is shorter than wild type. The mutant mRNA, however, is significantly longer…

You are studying a neurodegenerative disease whose genetic cause maps to a mutat

You are studying a neurodegenerative disease whose genetic cause maps to a mutation in the p175 gene, which from BLAST searches may belong to the family of 7-transmembrane cell su…

You are studying a neurodegenerative disease whose genetic cause maps to a mutat

You are studying a neurodegenerative disease whose genetic cause maps to a mutation in the p175 gene, which from BLAST searches may belong to the family of 7-transmembrane cell su…

You are studying a neurodegenerative disease whose genetic cause maps to a mutat

You are studying a neurodegenerative disease whose genetic cause maps to a mutation in the p175 gene, which from BLAST searches may belong to the family of 7-transmembrane cell su…

You are studying a neurodegenerative disease whose genetic cause maps to a mutat

You are studying a neurodegenerative disease whose genetic cause maps to a mutation in the p175 gene, which from BLAST searches may belong to the family of 7-transmembrane cell su…

You are studying a neuron which you discover has a new kind of channel. The chan

You are studying a neuron which you discover has a new kind of channel. The channel is a voltage-gated chloride channel with a threshold for opening of around -40 mV, similar to o…

You are studying a new gene \"X\" that you think controls skin color in Bearded

You are studying a new gene "X" that you think controls skin color in Bearded es you need lots of gene X DNA to work with. So you Dragons. In order to determine what gene X do dec…

You are studying a new protein. The molecular weight of this protein as determin

You are studying a new protein. The molecular weight of this protein as determined by gel filtration (size exclusion chromatography) is 350kD. When the protein is subjected to SDS…

You are studying a new recessive mutation in chickens that causes feather loss f

You are studying a new recessive mutation in chickens that causes feather loss from the wings. Describe the expected progeny phenotypes from a cross between a hen with featherless…

You are studying a new species of microorganism that was discovered at the botto

You are studying a new species of microorganism that was discovered at the bottom of the ocean and appears to have been isolated from other species for millions of years. You begi…

You are studying a new species of rotifer. You note during development that the

You are studying a new species of rotifer. You note during development that the mesoderm-derived tissue is only adjacent to the external body tissue and not the digestive tract. D…

You are studying a new virus whose effects include loss of motor control in all

You are studying a new virus whose effects include loss of motor control in all limbs due to an imbalance of intracellular potassium ions. You discover that this is due to viral i…

You are studying a new virus whose effects include loss of motor control in all

You are studying a new virus whose effects include loss of motor control in all limbs due to an imbalance of intracellular potassium ions. You discover that this is due to viral i…

You are studying a newly identified chromatin-remodeling complex, which you call

You are studying a newly identified chromatin-remodeling complex, which you call NICRC. You decide to run an in vitro experiment to characterize the activity of the purified compl…

You are studying a particular protein, and find that a mutationchanging an alani

You are studying a particular protein, and find that a mutationchanging an alanine amino acid residue within the interior of the protein to a valine resultsin a loss of protein fu…

You are studying a plant from the arid southwestern United States. Which of the

You are studying a plant from the arid southwestern United States. Which of the following adaptations is least likely to have evolved in response to water shortages? Closing the s…

You are studying a plieotrophic gene in dogs. One trait governed by this gene is

You are studying a plieotrophic gene in dogs. One trait governed by this gene is tail length. For this trait the T allele is associated with normal length tails and the t allele i…

You are studying a population of 100 flowers that has two alleles at a locus for

You are studying a population of 100 flowers that has two alleles at a locus for flower color, blue (B) and green (G). There are 15 individuals with the BB genotype, 70 individual…