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a) Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'
Applications of Different Observational Study Designs Objective
Case Control
Cohort
Investigation of rare disease
Investigation of rare exposure
Investigation of long latent periods
Study of multiple exposures and determinants
Measurement of time relationship
Direct measurement of Incidence
b) Complete the following given table titled 'Benefits and de-merits of different the observational Study Designs' indicating for every event applicable to the pertinent study design if probability of such an event is 'high' or 'low'. In case you believe the probability between study designs is same then indicate 'same'.
Different Observational Study Designs Event
Selection bias
Recall bias
Loss to follow-up
Confounding affecting validity
Long time required
High cost
Hormone Z, responsible for maintaining normal blood levels of chemical A, binds to membrane-bound receptors on its target cells. These target cells use G-protein and cyclic AMP to carry out the response of hormone Z. compute the consequences if a dru..
They are though more closely related to each other than they are to either of their parents. since now they know their child will not be a hemophiliac! Explain how they know this.
In Staphylococcus epidermidis, bacillus subtilis and escherichia coli, which one has gram- positive, which one has gram-negative? Also, which organism is the biggest? Which one is the least.
Noda and Numa in 1984 isolated the first voltage-gated sodium channel gene from the electric organ of the electric eel. Electric organs contain a high density of sodium channels. Tetrodotoxin (TTX) is a potent neurotoxin that blocks sodium channels. ..
Explain the experiments, their expected results, and your conclusions. You may suppose that you have an unlimited budget and an Institutional Review Board with very strict guidelines for research in humans.
List and describe at least three cellular features of bacteria that could be targeted to inhibit or kill bacterial pathogen. Which is a significant flaw in this experimental set-up.
What is the dissimilarity between exergonic and endergonic reactions? Give an instance of each. What is the significance of each type of reaction.
Suppose that transgenic organisms can be developed to speed nitrogen fixation. How might use of these organisms affect ecosystem.
Since a doughnut contains a large quantity of energy that can become available for our metabolism when eaten, why isn't the doughnut "jumping" all over the counter or hot to the touch.
Which is likely explains the genetic uniqueness of this population. Following accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. What nerve damage did he maintain.
Rabbits heterozygous for Pelger trait and exhibiting that phenotype are crossed. The offspring appear in a 2:1 ratio (Pelger : normal). Explain this strange ratio.
What is the phenotypic ratio you would expect to see in the F2 generation if you were following a sex-linked trait? An autosomal trait? Two autosomal dominant characters (dihybrid cross).
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