Biology and Genetics

You are studying a population of a rare shark to assess its long-term prospects

You are studying a population of a rare shark to assess its long-term prospects for survival. Assume that you can determine the age and gender of each shark. You perform a mark-re…

You are studying a population of a rare shark to assess its long-term prospects

You are studying a population of a rare shark to assess its long-term prospects for survival. Assume that you can determine the age and gender of each shark. You perform a mark-re…

You are studying a population of birds that are preyed on by feral cats. You hav

You are studying a population of birds that are preyed on by feral cats. You have four study sites where the bird populations are roughly equal, and do an experiment where you hav…

You are studying a population of dragonflies looking at 2 alleles labeled X 1 an

You are studying a population of dragonflies looking at 2 alleles labeled X1 and X2. In your new season of fieldwork you find 53 of the 472 individuals you examine have a new alle…

You are studying a population of dragonflies looking at 2 alleles labeled X1 and

You are studying a population of dragonflies looking at 2 alleles labeled X1 and X2. In your new season of fieldwork you find 53 of the 472 individuals you examine have a new alle…

You are studying a population of jellyfish. It has a population size of about 10

You are studying a population of jellyfish. It has a population size of about 10,000 individuals. As long as there are multiple alleles of a gene in this population, why will the …

You are studying a population of parrots. The parrots are generally either whist

You are studying a population of parrots. The parrots are generally either whistlers, squawkers or are able to do both with this trait controlled by a gene at a single locus. Parr…

You are studying a population of parrots. The parrots are generally either whist

You are studying a population of parrots. The parrots are generally either whistlers, squawkers or are able to do both with this trait controlled by a gene at a single locus. Parr…

You are studying a population of parrots. The parrots are generally either whist

You are studying a population of parrots. The parrots are generally either whistlers, squawkers or are able to do both with this trait controlled by a gene at a single locus. Parr…

You are studying a population of squirrels in a city park in McMinniville Tn.,.

You are studying a population of squirrels in a city park in McMinniville Tn.,. You are interested in this population because it contains some albinos (caused by a recessive allel…

You are studying a population of turtles that live in the lagoon at El Dorado na

You are studying a population of turtles that live in the lagoon at El Dorado nature center. You isolate DNA and measure the genotypes of 271 individuals. You find 110 with the AA…

You are studying a population or sunflowers and you Observe that there are two a

You are studying a population or sunflowers and you Observe that there are two alleles for stem length. Allele 1 codes for fat stems and Is dominant over allele 2, which codes for…

You are studying a protein that has two transmembrane domains. The spacing of th

You are studying a protein that has two transmembrane domains. The spacing of the transmembrane domains is shown as, gray boxes in the Figure. The C-terminal domain of the protein…

You are studying a protein that resides in the plasma membrane. The shaded regio

You are studying a protein that resides in the plasma membrane. The shaded regions below represent transmembrane regions and the numbered lines represent regions that are either i…

You are studying a protein, \"X.\" You decide to first purify the protein from c

You are studying a protein, "X." You decide to first purify the protein from cells. The steps for purification are: Centrifuge cell lysate and collect microsomal pellet and supern…

You are studying a sequence of rocks cut by a basa lt dike, a basalt sill, and b

You are studying a sequence of rocks cut by a basa lt dike, a basalt sill, and by two strike-slip faults (F1 and F2). A vertical section of this rock sequence is shown on the acco…

You are studying a simple unicellular eukaryote in the lab. you observe that if

You are studying a simple unicellular eukaryote in the lab. you observe that if you grow a culture of these cells(which can grow anaerobically or aerobically) without O2, they con…

You are studying a snake species, and find that there are two color morphs (grey

You are studying a snake species, and find that there are two color morphs (grey and white). Skin color is determined by a single locus (the w allele codes for white skin and is r…

You are studying a species of ground squirrel that hibernates and you want to de

You are studying a species of ground squirrel that hibernates and you want to determine if nitrogen is salvaged in the same way it is salvaged in bears. You feed the ground squirr…

You are studying a strain of bacteria that carries a temperature sensitive mutat

You are studying a strain of bacteria that carries a temperature sensitive mutation in one of the genes required for DNA replication. The bacteria grow normally at the lower tempe…

You are studying a strain of bacteria that carries a temperature-sensitive mutat

You are studying a strain of bacteria that carries a temperature-sensitive mutation in one of the genes required for DNA replication. The bacteria grow normally at the lower tempe…

You are studying a strain of bacteria. You find that it has suddenly gained the

You are studying a strain of bacteria. You find that it has suddenly gained the ability to survive antibiotics. After asking around, You find out that your partner did not fully c…

You are studying a strain of bacteria. You find that it has suddenly gained the

You are studying a strain of bacteria. You find that it has suddenly gained the ability to survive antibiotics. After asking around, you find out that your partner did not fully c…

You are studying a strain of bacteria. You that it has suddenly gained the abili

You are studying a strain of bacteria. You that it has suddenly gained the ability to survive antibiotics. After asking around, you find out that your partner did not fully clean …

You are studying a strain of yeast that can survive in extreme conditions. You i

You are studying a strain of yeast that can survive in extreme conditions. You identify a copy of the Protein Z gene that is mutated in this strain. In the mutant Protein Z (Z-mut…

You are studying a type of lung cancer. You obtain normal and tumor tissue from

You are studying a type of lung cancer. You obtain normal and tumor tissue from a patient. You perform a comparative genome hybridization (CGH) array analysis. DNA derived from no…

You are studying a type of yeast that can grow in both the presence and absence

You are studying a type of yeast that can grow in both the presence and absence of oxygen using normal metabolic pathways (glycolysis, Krebs cycle, ETS, ATP synthase). You have ge…

You are studying a type of yeast that can grow in both the presence and absence

You are studying a type of yeast that can grow in both the presence and absence of oxygen using normal metabolic pathways (glycolysis, Krebs cycle, ETS, ATP synthase). You have ge…

You are studying a type of yeast that can grow in both the presence and absence

You are studying a type of yeast that can grow in both the presence and absence of oxygen using normal metabolic pathways (glycolysis, Krebs cycle, ETS, ATP synthase). You have ge…

You are studying a type of yeast that can grow in both the presence and absence

You are studying a type of yeast that can grow in both the presence and absence of oxygen using normal metabolic pathways (glycolysis, Krebs cycle, ETS, ATP synthase). You have ge…

You are studying a variety of pea plant that has either red flowers or white flo

You are studying a variety of pea plant that has either red flowers or white flowers. When you cross true-breeding red-flowering plants with true-breeding white-flowering plants, …

You are studying a very harmful intestinal pathogen that severely damages the in

You are studying a very harmful intestinal pathogen that severely damages the intestinal epithelium. You have found that this pathogen produces a strong toxin that binds to and in…

You are studying actin filament dynamics in a test tube that contains actin mono

You are studying actin filament dynamics in a test tube that contains actin monomers and ATP. You observe that actin filaments are treadmilling when the monomer concentration is b…

You are studying aging in fruit flies and have generated a number of homozygous

You are studying aging in fruit flies and have generated a number of homozygous long-lived mutants. You now wish to determine how many genes these six mutants represent. You perfo…

You are studying aging in fruit flies and have generated a number of homozygous

You are studying aging in fruit flies and have generated a number of homozygous long-lived mutants. You now wish to determine how many genes these six mutants represent. You perfo…

You are studying an endangered flower growing in the Superior National Forest. T

You are studying an endangered flower growing in the Superior National Forest. These flowers are sexually reproducing and freely-interbreeding. They are tall, medium or short. The…

You are studying an environment rich in sulfur. You add hydrogen to it and notic

You are studying an environment rich in sulfur. You add hydrogen to it and notice that it decreases in concentration rapidly. Carbon dioxide levels also steadily decline, while me…

You are studying an enzyme and an inhibitor of that enzyme kinetically. A Linewe

You are studying an enzyme and an inhibitor of that enzyme kinetically. A Lineweaver Burk plot of the enzyme with increasing amounts of substrate in the absence and presence of th…

You are studying an enzyme and wish to use PCR to amplify the gene encoding this

You are studying an enzyme and wish to use PCR to amplify the gene encoding this enzyme. Here is the amino acid sequence of the enzyme (in single letter code): MMMCWCDQFLAAAIDAAKK…

You are studying an idealized population that meets all the assumptions of the H

You are studying an idealized population that meets all the assumptions of the Hardy-Weinberg null model. You focus on a locus with two alleles: B_1, and B_2. The starting allele …

You are studying an isolated population of birds that are morphologically distin

You are studying an isolated population of birds that are morphologically distinct from other populations of their species. Female birds of this population will not breed with mal…

You are studying an operon from a new species of bacteria. A) What is an operon?

You are studying an operon from a new species of bacteria. A) What is an operon? B) The operon, abc, is turned on in the presence of the abc substrate, but is off when abc is abse…

You are studying an organism Methylacquaticus coli , and have shown that it can

You are studying an organism Methylacquaticus coli, and have shown that it can transport and utilize gluconate as a carbon source. You conduct several experiments to try to determ…

You are studying an unknown microbe isolated from an acidic hotspring. Your expe

You are studying an unknown microbe isolated from an acidic hotspring. Your experiments have revealed the following: 1) The cell wall is made up of proteins; 2) The membrane lipid…

You are studying apoptosis in a particular cell type and you would like to deter

You are studying apoptosis in a particular cell type and you would like to determine if caspase activation occurs during this apoptotic event. b. (4pts) Describe how are caspases …

You are studying chemotaxis in two different strains of Dictyostelium discoidum.

You are studying chemotaxis in two different strains of Dictyostelium discoidum. The first strain has a mutation in the solo gene (solo mutant), which encodes the G subunit of the…

You are studying chemotaxis in two different strains of Dictyostelium discoidum.

You are studying chemotaxis in two different strains of Dictyostelium discoidum. The first strain has a mutation in the solo gene (solo mutant), which encodes the G subunit of the…

You are studying chemotaxis in two different strains of Dictyostelium discoidum.

You are studying chemotaxis in two different strains of Dictyostelium discoidum. The first strain has a mutation in the solo gene (solo mutant), which encodes the G subunit of the…

You are studying chemotaxis in two different strains of Dictyostelium discoidum.

You are studying chemotaxis in two different strains of Dictyostelium discoidum. The first strain has a mutation in the solo gene (solo mutant), which encodes the G subunit of the…

You are studying different traits in dogs. You decide to look at six independent

You are studying different traits in dogs. You decide to look at six independently segregating traits. Each trait is determined by a single gene with two alleles. Gene Symbol     …