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Q 1 What is meant by a haemagglutination inhibition assay?
Q 2 Explain the basis for the negative (saline) control
Q 3 Secretion is the dominant phenotype; Se the dominant allele. Using the gene symbols Se and se write down the genotypes that correspond to the secretor and non-secretor phenotypes
Q 4 If two heterozygous individuals mate, what proportion of the offspring would be expected to be non-secretors? Show your working.
Q 5 Explain the basis for the positive saliva control
Q 6 Prior to the assay both the Ulex reagent and the αA and αB antibodies must be titrated to determine the optimum dilution to use in the assay. Explain why this step is necessary. (Hint. Think what would happen if there was too little or too much Ab added in the assay.)
Today, scientific advances are being made at an astounding rate, and nowhere is this more evident than in our understanding of the biology of heredity. Using DNA as a starting point, do you believe there are limits to the knowledge people should a..
Drowning, suffocation and carbon monoxide poisoning can lead to death because they all prevent oxygen from reaching our cells. Explain how this lack of oxygen can lead to death; be specific and please explain in dummy terms.
Find a news (NY Times, Chicago Tribune, Huffington Post, local digital newspapers, etc.) or scientific article about beneficial microbes. The topics can be quite broad such as a microbial role in diabetes, bone strength, liver function, obesity, a..
List some disadvantages of protozoa. Explain in detail.
what advantge is it to the plant in not having the root hairs nearer the tip of the root and of what advantage to the plant are root hairs? can you also please explain why dont you see root hairs on a plant which has been pulled by the roots?
An individual with a low metabolic rate improves
If the sample were heated with Methylene Blue stain and counterstained with Carbofushin will you still be able to determine which bacterium were acid fast? If so, which colour would indicate acid-fast.
You place a mouse alone in a covered airtight container with food and a source of water. What will happen to the mouse, and why?
The diagnosis of altered mental status is general rather than exact. There are several specific sources for altered mental status. Choose three different diagnoses that are specific sources for altered mental status, and discuss symptoms, risk fac..
Why was there such a diversity of species in such a small area? Could these species have been modified from an ancestral form that arrived on the Galápagos Islands shortly after the islands were formed?
Identify thecell component that is not found in both prokaryotic and eukaryoticcells?
Describe why an anaerobic indicator strip in an anaerobic environment will revert to blue if it gets wet.
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