A 25‐year‐old construction worker is complaining of a swishing noise in both ears that never goes
away and has occurred for about 6 months. He is otherwise healthy, is able to work on his job
(operating large, vibrating machinery) without problems, and is not taking any medications. A
complete examination reveals an abnormality. Which of the following abnormality is most often
associated with tinnitus?
a) Headache
b) Wax in both ears
c) Mild tremor
d) Vertigo
e) Bilateral earache

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )

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%.