Biology and Genetics

You have four identical Isolated neurons which are capable of forming excitatory

You have four identical Isolated neurons which are capable of forming excitatory ACh synapses on both ends. You treat each of these neurons with a different drug. You then apply a…

You have four tubes containing the same sample of DNA at the same concentration

You have four tubes containing the same sample of DNA at the same concentration and at pH 7.5, but under different environmental conditions (listed below). The TM for this DNA mol…

You have freckles, dimples, and a widow\'s peak (you\'re heterozygous for all th

You have freckles, dimples, and a widow's peak (you're heterozygous for all three traits). Your significant other has freckles and dimples (heterozygous for these two), but a cont…

You have generated synthetic membranes in the laboratory. The properties of the

You have generated synthetic membranes in the laboratory. The properties of the membranes are listed below. Membrane 1: Made entirely from phospholipids with saturated 16-carbon f…

You have genetically engineered a yeast cell to make a protein that will ultimat

You have genetically engineered a yeast cell to make a protein that will ultimately be secreted from the cell. If all is functioning well, in which order (from first to last) do y…

You have gone fishing and caught some squid. Before making delicious calamari, y

You have gone fishing and caught some squid. Before making delicious calamari, you dissect out the giant axon, and study it in your neurophysiology laboratory. Your piece of giant…

You have had the opportunity to learn about gas exchange and the impact it can h

You have had the opportunity to learn about gas exchange and the impact it can have on the body. With this discussion you will need to think about fluid imbalances and how this im…

You have had the same roommate since the start of freshman year, so by halfway t

You have had the same roommate since the start of freshman year, so by halfway through your sophomore year, you feel you know Julia pretty well: she’s generally quiet but calm, ki…

You have heard a myth that large companies use monkeys to choose winning raffle

You have heard a myth that large companies use monkeys to choose winning raffle slips to ensure a random draw. With a brilliant idea on how to make millions, you purchase a monkey…

You have heard about the thermostat-furnace system in a house as a non-biologic

You have heard about the thermostat-furnace system in a house as a non-biologic example of a homeostatic mechanism. In the human body, structures called baroreceptors monitor the …

You have heard that two different flu epidemics may threaten your town next year

You have heard that two different flu epidemics may threaten your town next year, but you only have the budget to purchase one vaccine. Strain A has R0 of 1.5. A similar strain sw…

You have identified a mutant E. coli strain that cannot synthesize histidine (Hi

You have identified a mutant E. coli strain that cannot synthesize histidine (His-). To determine the location of the his- mutation on the E. coli chromosome, you perform interrup…

You have identified a mutation in E. coli K-12 that causes it to become sensitiv

You have identified a mutation in E. coli K-12 that causes it to become sensitive to the the antibiotic azithromycin (azi). You sequence the chromosome of the aziS strain and loca…

You have identified a mutation that is associated with ADHD and have found it to

You have identified a mutation that is associated with ADHD and have found it to be caused by a point mutation in Cu/Zn SOD. The disease is inherited in an autosomal manner. Two h…

You have identified a new drug that inhibits certain forms of cell motility, inc

You have identified a new drug that inhibits certain forms of cell motility, including cell crawling. This drug dramatically decreases the viscosity of gels formed with mixtures o…

You have identified a new drug that inhibits certain forms of cell motility, inc

You have identified a new drug that inhibits certain forms of cell motility, including cell crawling. This drug dramatically decreases the viscosity of gels formed with mixtures o…

You have identified a new gene of interest which is described as follows 5\' GAA

You have identified a new gene of interest which is described as follows 5' GAATTCTGCCTTAAAATTTGTTTGTGGGATG.... 4kb of DNA sequence... TAAGTTTCTGTAAATGTGTAAAAGTCGAC-3. You wish to…

You have identified a novel mutant allele for the HiBrn8 gene leading to decreas

You have identified a novel mutant allele for the HiBrn8 gene leading to decreased response to stimuli by the brown bear during hibernation. You have obtained the sequence for wil…

You have identified a novel protein that associates with the plasma membrane. Yo

You have identified a novel protein that associates with the plasma membrane. You do not know whether this protein is a peripheral or a transmembrane protein. You therefore analyz…

You have identified a protein factor that when added to in vitro protein synthes

You have identified a protein factor that when added to in vitro protein synthesis reaction increases the incorporation of 35S-methionine from 4 pmoles/minute to 8 moles/mean. Whe…

You have identified a protein factor that when added to in vitro protein synthes

You have identified a protein factor that when added to in vitro protein synthesis reaction increases the incorporation of 35S-methionine from 4 pmoles/minute to 8 moles/mean. Whe…

You have identified a protein in humans with the amino acid sequence shown here:

You have identified a protein in humans with the amino acid sequence shown here: 1 - M Q I F V K T L T G K T I T L E V E P S D T I E N - 25 26 - V K A K I Q D K E G I P P D Q Q R …

You have identified a protein pair, named Alpha 1 and Zeta1, which bind to each

You have identified a protein pair, named Alpha 1 and Zeta1, which bind to each other to form a heterodyne. You made two mutants in these proteins. The first is designated alpha1 …

You have identified a protein pair, named Alpha1 and Zeta1, which bind to each o

You have identified a protein pair, named Alpha1 and Zeta1, which bind to each other to form a heterodimer. You made two mutants in these proteins. The first is designated alpha1-…

You have identified a sequence of bases that corresponds to the regulatory prote

You have identified a sequence of bases that corresponds to the regulatory protein for lactase. Here is part of that dsDNA sequence: 1 5’-TTGGAGTCGGATCCTTACTGCAGAATTTGCTTACGCGCTAT…

You have identified a temperature-sensitive mutation in yeast (a unicellular euk

You have identified a temperature-sensitive mutation in yeast (a unicellular eukaryote) that prevents the capping of the 5' end of the RNA transcript: Mutant yeast grow only at lo…

You have identified a temperature-sensitive mutation in yeast (a unicellular euk

You have identified a temperature-sensitive mutation in yeast (a unicellular eukaryote) that prevents the capping of the 5' end of the RNA transcript: Mutant yeast grow only at lo…

You have identified an alien species of bacteria coming in samples sent to earth

You have identified an alien species of bacteria coming in samples sent to earth by the Mars Rover. Initial experiments seem to suggest that it is able to grow in Myelin, a lipid …

You have identified an enhancer trap line generated by P element transposition i

You have identified an enhancer trap line generated by P element transposition in Drosophila in which the marker gene from the enhancer trap is specifically expressed in the wing …

You have identified an enzyme from a thermophilic bacterium that lives in hot sp

You have identified an enzyme from a thermophilic bacterium that lives in hot springs which converts glucose into a compound that effectively treats male pattern baldness. When yo…

You have identified an enzyme from a thermophilic bacterium that lives in hot sp

You have identified an enzyme from a thermophilic bacterium that lives in hot springs which converts glucose into a compound that effectively treats male pattern baldness. When yo…

You have identified and cloned a gene that encodes a novel receptor, which you n

You have identified and cloned a gene that encodes a novel receptor, which you named EVYL. EVYL is express on some, but not all, B cells. The ligand for this receptor is still unk…

You have identified several recessive mutations on a chromosome. These mutations

You have identified several recessive mutations on a chromosome. These mutations include eyeless, Dpy-1 and hairy. You have a female worm that is heterozygous for eyeless, hairy, …

You have identified some intermediates in threonine synthesis: A, B, C, D and E.

You have identified some intermediates in threonine synthesis: A, B, C, D and E. You grow a few of your mutants in the presence of these different intermediates to determine the o…

You have identified the causative agent of the illnesses as Listeria monocytogen

You have identified the causative agent of the illnesses as Listeria monocytogenes and have laboratory data to support your conclusion. Now you will need to determine the bacteria…

You have identified two mutant lines of corn that each frow in the presence of a

You have identified two mutant lines of corn that each frow in the presence of a particular herbicide. Line 1 is homozygouse for recessive mutation a, and Line 2 is homozycous for…

You have identified two mutant lines of corn that each grow in the presence of a

You have identified two mutant lines of corn that each grow in the presence of a particular herbicide. Line 1 is homozygous for recessive mutation a, and Line 2 is homozygous for …

You have identified various tRNAs from a variety of hypothetical orgainisms. Giv