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Q. Scientists recently have proposed a reorganization of the phylogenetic system of classification to include the domain, a new taxonomic category higher (more inclusive) than the Kingdom category.
• explain how this classification scheme presents different conclusions about the relationships among living organisms than those presented by the previous five-kingdom system of classification.
• illustrate three kinds of evidence that were used to develop the taxonomic scheme above, and explain how this evidence was used. The evidence may be structural, physiological, molecular, and genetic.
• explain four of the characteristics of the universal ancestor.
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 generati..
Plants often use external signaling to attract animals, ofteninsects, to enhance their survival and / or reproductive success.Describe two distinct ways that a plant might use chemical cues toattract animals to benefit the plant's survival.
Recognize the two challenges faced by the public health and also discuss how tools and the guidelines of an epidemiological study is applied in finding the answers and strategies for meeting these challenges.
In corn, purple kernels (P) are dominant to yellow kernels (p). You have a plant with an unknown genotype that has a phenotype of purple kernels. You perform a testcross and find that all of the offspring are purple.
Explain why it is important not to touch any other area of the mouth except the pharyngeal membranes when taking a throat culture.
Create a chart listing animals from the different classes of vertebrates at the National Zoo. Include one example from each class. You should find information about the common characteristics of animals classified in this phylum. Describe their di..
describe how fossils can be used as a line of evidence for evolution. In your answer, please include a basic definition for fossil, strata, describe how radiometric dating is done,and specifically how this can be used as a line of evidence for evo..
Most biologists believe that immune system's defense against infections largely rests on its ability to distinguish self molecules from nonself molecules.
Think about the pathology of a cytokine storm, select possible strategies that would be likely to diminish the harmful effects of superantigen toxins.
Develop two degenerate primer sequences that will amplify the entire Open reading frame of the corresponding gene in a PCR reaction.
bioinformatic You have been given a gene sequence, which is in RAW file format. Perform the following tasks by visually inspecting the sequence using information you were provided during lectures for Module 1, Topics 2 and 3.
Total magnification of a miscrosope is determined by adding the eyepiece-lens magnification to the objective-lens magnification?
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