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The main principles of evolution are outline below. Using the principles of evolution as a guide, describe how antibacterial resistance happens OR describe how different skin pigmentation evolved in the human population.
1. Variation exists in populations.2. Some variable traits are inherited or passed along through genetic information.3. More offspring are born than survive and reproduce.4. overtime, advantageous traits become more common in a population and disadvantageous traits less common.5. Advantageous and disadvantageous traits depend on the environment where an organism lives.
Explain the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells' abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for amino acid biosynthesis.
When the diaphragm and external intercostal muscles contract: The size of the pleural cavity increases Intrapleural pressure decreases.
Assume you are studying genes and DNAsequences involved in the regulation of the grandoperon. When your lab's strain of e. coli are in the presence of the sugar "grandiose," transcription of 2-enzymes grandAand grandB increases.
In the F2 generation, how many genotypic classes could be generated from dihybride cross of two F1 heterozygous in which the gene show complete dominance.(PLEASE EXPLAIN)
A woman who undergoes an inulin clearance test has an inulin concentration in her urine of twenty mg/ml; an inulin concentration in her blood of 0.70 mg/ml.
A new dominant mutation occurs in a population of red-winged blackbirds that triples the size of the red shoulder patch in males. Individuals expressing the new mutation are far more conspicuous to predators and this causes their survival to be re..
Explain the sites and actions of the cardioinhibitory and cardioacceleratory centers and also discuss the factors that affect heart rate and stroke volume.
define how the axonal membrane potential is restored. Describe how resting ionic distributions are maintained.
In human gut microbiome, it is proposed that the most inner layer of bacterial cells (most close to the epithelial cells) is composed of micro-aerobes.
During sleep, relay neurons in the thalamus reduce information reaching the cerebrum by altering their membrane potential. In diagnosing bacterial and viral infections of the nervous system, samples of CSF are extracted from the spinal cord.
Describe these strategies. What are the advantages and disadvantages of each strategy for a virus? Give an example of a specific virus and how it follows one of the strategies.
Determine what would be the forecasted numbers of offspring with these four genotypes if the parental generation had been AAbb and aaBB instead of AABB and aabb ?
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