TYPHOID FEVER 1. History of the disease: scientific name, signs and symptoms,
origin (where did it come from?)
2. Cause agent (what type of pathogen)
3. Structure (what does it look like)
4. Mode of transmission (how is it spread)
5. Does is follow a lytic or lysogenic cycle?
6. Prevention and Treatment
7. Example of a major outbreak of this disease: what happened,
when, where, who was affected
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the sphincter muscles at the end of the digestive tract is the anus.

answerlength of time the medication is in contact with the skin(moistur level of the skin) depth of respirations blood supply to the area; all of the above; ///

we solve the problem using the hardy-wineberg equation.

let us start with the homozygous recessive proportion of individuals with sickle cell anaemia,

we have the proportion as q² = 0.25.

∴ q = 0.5 (frequency of hbs in population)

further,

solving for the frequency of normal cell by using the fact that,

p + q = 1

∴ p = 1 - 0.5 = 1 - 0.5 = 0.5

now we can calculate 2pq in p² + 2pq + q², which is the frequency for heterozygous carriers of sickle cell anaemia,

∴ 2pq = 2 x 0.5 x 0.5 = 0.5

and the homozygous normal cell individuals proportion is given by the expression,

∴ p² = 0.5² = 0.25

hence, the carriers for sickle cell anaemia are in proportion, 0.5, or 50%.