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Assume you have two cell lines named ViRa and SaSi growing in your lab. ViRa is susceptible to poliovirus infection, but is not permissive; SaSi is not susceptible to poliovirus infection, but is permissive. Note that poliovirus has a (+) strand RNA genome.
a) What happens when you infect ViRa and SaSi with poliovirus?
b) What happens when you transfect ViRa and SaSi cells with poliovirus RNA?
Utilize darwin's theory of evolution by natural selection to explain how a group of ancient mammals couple be the ancestors of a major new group of mammals, the cetaceans.
If relatively small carbonaceous chondrites from space were a significant source of Earth's original amino acids, then which two of these would have been most important in permitting their organic materials to survive impact with Earth.
Compare and contrast signaling by neurons which secret neurotransmitters at synapses to signaling carried out by endocrine cells, that secretes hormones into the blood, define the relative advantage of the two mechanisms.
How many different combinations of phenotypes could exist of these 7 paired traits . What proportion would be heterozygous in every trait after 2 years.
An electric field with a magnitude of 170 N/C exists at a spot that is 0.11 m away from a charge. At a place that is 0.36 m away from this charge, what is electric field strength.
What is the genotypic and phenotypic ratio in the offspring produced by the cross AABb x Aabb if A is green colour, a - yellow; B- tall plants. b -short plant? Suppose complete dominance for the trait. Describe results of the cross using branching di..
Biochemical feedback regulation or end product inhibition. What are the most general neurotransmitters in the brain.
What is nonassociative learning and what are the differences between associative and nonassociative learning. In the small stream, you choose a rock and observe many small, flattened worms crawling on it are under surface. You decide that they belong..
Terry catches a ray-finned fish from the ocean and notices that, attached to its flank, there is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker and two small ey..
Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration were the conditions tested in experiment. because warm water is less dense then cold water, would you predict any difference between spines of warm water indivi..
give Food preservation methods interfere with the enzyme activity of microbes and prevent them from surviving. How does canning, freezing, pickling and salting interfere with enzyme activity? Ideas are justified.
What is the difference between molecular motion and diffusion?is it extremely small to demonstrate brownian movement.
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