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1. Which of the following describes the most likely order of events in speciation?a.) genetic isolation, genetic drift and/or natural selection,divergence into two speciesb.) genetic isolation, divergence into two species, geneticdrift and/or natural selectionc.) divergence into two species, genetic drift and/or naturalselection, genetic isolationd.) genetic drift and/or natural selection, divergence intotwo species, genetic isolation
2. A species has six pairs of chromosomes. How many moleculesof DNA do the nuclei have during G2 phase?a.) 6b.) 12c.) 24d.) 48
3. How does a scientific theory differ from a scientifichypothesis?a.) there is no difference, the terms areinterchangeableb.) a theory is a well-tested explanation for more generalphenomena, while hypotheses treat more specific observationsc.) theories define scientific laws, hypotheses are used toset up experimentsd.) theories are not necessarily testable, hypotheses aretestable.
In Similarity County USA the following genotype frequencies were observed: 300 AA, 300 Aa, 300 aa. 5A) Do these data represent a statistically significant departure from Hardy-Weinberg Equilibrium?
In rabbits, black hair is dominant to brown at an autosomal locus, while the sex-linked recessive allele "a" is epistratic to black or brown, causing white fur. A white male was bred twice.
Digestion of the oligonucleotide, AGUACAA, by pancreatic RNase would yield what products. make a restriction map for this plasmid.
What is the difference between acute and chronic stress and how these are mediated? Include the hormones involved in each type, the receptors involved, and the significance on the body [both good and bad effects].
How does this process work exactly? What are the exact steps for knocking out p53 tumor suppressor in mice and how is this beneficial?
Which of the following would not be stimulated by neurons originating in the hypothalamus.
A 22-year-old Honduran woman presents to an urgent care center complaining of a rash and joint pains in the wrists and knees for 2 days. Her rash was preceded by 3 days with a fever, malaise, headache, mild conjunctivitis, mild cough, and lymphade..
Why is it important to have an antibiotic resistance gene in the cloning plasmid?
How several bacteria were on the soap? How did they get there. Unlike squamous cells, cuboidal and columnar cells have large, open cytoplasms. Which functions of epithelial tissue are supported by having such big cells.
1. how is potassium-argon dating useful to a palaeoanthropologist when it cant be used to date bone?2. what techniques
What organelles would you expect to find in exaggerated quantities in pancreaticacinar cells? What role does each of the organelles serve?
Think about the phenomenon of bacterial resistance to antibiotics. How did the combination of human advances and basic evolutionary principles lead to this condition?
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