In: Biology
For Problems
1(filling in the table) and 2, let's use the following numbers:
With the total...
For Problems
1(filling in the table) and 2, let's use the following numbers:
With the total
number of people being 34, 10 have a straight hairline and 24 have
a widow's
peak. Those are the numbers to put in the No. columns for the class
population.
From there, you will need to calculate the percentage for each
value. Then,
calculate q. Then calculate p.
- Determine allelic frequencies and phenotypic proportions of
widow’s peak and straight hairline.
Phenotypes
Allele Frequency
|
Widow’s Peak
(p2 + 2pq)
|
Straight Hairline
(q2)
|
p
|
q
|
|
Class
Population
|
No.
%
|
No.
%
|
|
|
|
North American Population
|
0.69
|
0.31
|
|
|
- What is the percentage of heterozygous widow’s peak (2pq) in
the class?
(SHOW YOUR WORK)
- What percentage of the North American population is
heterozygous for widow’s peak? (SHOW YOUR WORK)
- The allele for free earlobes is dominant over the allele for
attached earlobes. In a population of 1,000 individuals, 510 show
the dominant phenotype. How many individuals would you expect of
each of the possible three genotypes for this trait? (SHOW YOUR
WORK)