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For each of the following: What would you expect to be the most important evolutionary force acting between this generation and the next affecting the genetic composition of the populations (for these scenarios for a specific locus, we are concerned only with that locus and/or phenotype)? a) A population of bacteria that was started from a single cell 1 generation ago? b) A population of LL individuals that comes into close contact with a population of LL, Ll, and ll individuals. Assume the two populations exchange 10% of their populations through migration and the three genotypes do not differ in fitness? c) A population in which the absolute fitness of each of three phenotypes are: blue = 100, blue-orange = 90, and orange 90 and phenotypes are determined by the environment, not genetics? d) A population in which a mutation produces a new allele that increases the individuals that have that allele to have a higher probability of surviving to reproductive age (assume a 5% increase). Assume the mutation entered the population 1 generation ago and Ne = 100,000?
Discuss how these drugs act on the receptors to prevent the typical symptoms of allergic rhinitis.
Predict equilibrium potentials E K and E Na at a temperature of 13 o C. Suppose that the Na permeability of the cell membrane is 1/50 that of the K permeability, predict the resting potential, E m , assuming that Cl is in equilibrium.
Think about the pathology of a cytokine storm, select possible strategies that would be likely to diminish the harmful effects of superantigen toxins.
Diabetes and obesity are two metabolic diseases characterized by insulin resistance and a low grade inflammation. Seeking an inflammatory factor causative of the onset of insulin resistance.
A 3-factor cross in Salmonella typhimurium was performed using bacteriopage P22. The cross between an arg-leu-his- recipient bacterium and bacteriophage P22,
Assume you are a population geneticist, studying a particular disease which is inherited as an autosomal recessive trait. In the population you are studying, the incidence of the disease is three percent.
What are the characteristics of the cervical region of the vertebral column in amphibians, reptiles, birds and mammals?
An aquatic arthropod known as a Cyclops has antennae that are either smooth or barbed. The allele for barbs is dominant. In the similar organism, resistance to pesticides is a recessive trait.
Explain the probability that the first child of parents who are heterozygous for both traits will show the achondroplasia however not the Huntington's disorder?
What should we do to find out the consensus sequence of initial translation region around ATG for a specific species. Figure out the passive, active, and total stress components of an isometric experiment (label the axes) and provide simple diagrams..
Think about a signal transduction pathway leading to the cell dividing. Begin with a tyrosine kinase. What is the function of the tyrosine kinase?
If the genotype of an organism is YySsTt, then yST would represent. the genotype of the offspring. a gamete of that parent organism. a possible phenotype of the offspring.
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